10th Class Chemistry SLOs Based Test Series

Section – A

Q. No.1:- Circle the correct option. Each part carries one mark.

Section – B

Q. No.2:- Attempt any eleven parts from the following. The answer of each part should not exceed 3 to 4 lines.

1. Differentiate between forward and reverse reaction

2. What is meant by chemical equilibrium? Give examples of chemical equilibrium?

3. How can we increase the amount of ammonia and sculpture trioxide by changing the conditions of the reactions?

4. State conditions for equilibrium?

5. What is the importance of equilibrium constant for a chemical reaction?

6. Following reaction can occur during lighting storms?

1. 3O2⇋ 2O3for this reactions write. I ) Equilibrium constant expression ii) determine the units of equilibrium constant. Iii) forward and reverse reactions

7. Coal reacts with hot steam to form CO and H2these substances react further in the presence of a catalyst to give methane and water vapor?

   1. CO+2H⇋ CH4+H2O

8. Write equilibrium constant expression for each of the following reactions.

   1. H2O⇋ H2+1/2O2

   2. CO+2H2⇋CH3OH

   3. COCL2⇋CO+Cl2

9. Determine the units of equilibrium constant for the following reactions

   1. COCL2⇋CO+Cl2

   2. H2+I2⇋2HI

   3. N2+2O2⇋2NO2

10. State the ways that equilibrium can be recognized

11. Describe the macroscopic characteristics of an equilibrium reactions

12. Bromine chloride Decompose to form chlorine and bromine for this reaction write 

    1. Chemical equation

    2. Kc expression

    3. Units of Kc

13. N2O4⇋2NO2, Write the Kc expression for this reactions and Drive the units of Kc

14. For which of the following reactions are both reactants and products likely to be found when the reaction appears to be complete explain

    1.  C+O2⇋CO2

    2. 2HF⇋H2+F2

15. Cobalt chloride forms pink crystals when they are heated water is evolved and they turn blue explain how you could use Cobalt chloride as a test for water

1. Cocl3.6H2O⇋COCl3+6H2O

Section – C

Note: Attempt any two questions. All question carry equal marks.

Q. No.3:- a) Define Dynamic equilibrium

b) Explain with an example how a dynamic equilibrium can be established also draw a graph to show the establishment of an equilibrium state.

Q. No.4:- a) State the law of Mas Action

b) Derive the expression for the equilibrium constant for a general reaction

Q. No.5:- a) Write equilibrium constant and its units

b) Why the reversible reaction do not go to completion?

i. if a reaction has large value of Kc will it go to completion why?

Ii. Why at equilibrium state reaction does not stop.

Section – A

Q. No.1:- Circle the correct option. Each part carries one mark.

Section – B

Q. No.2:- Attempt any eleven parts from the following. The answer of each part should not exceed 3 to 4 lines.

1. What is auto ionization of water? How it is used to establish the pH of water?

2. Give some examples of acids of bases with their formulas?

3. Gove four characteristic properties pf acids and bases?

4. Define an acid and a base according to Bronsted-Lowry concept and justify with example what water is an amphoteric compound?

5. What are the limitation of Bronsted-lowry concept of acids and bases?

6. What is importance of Kw?

7. Write balanced chemical equations for the following neutralization reactions?

   1. Sulphuric acid Magnesium hydroxide⟶ magnesium sulphate +water

   2. Sulphuric acid +Sodium Hydroxide ⟶ sodium sulphate +water

   3. Hydrochloric acid+Calcuim hydroxide⟶ calcium chloride + water

8. What do you mean by a universal indicator? How it is used to measure pH of solution?

9. How would you perform an experiment to uses Litmus paper, pH paper and other indicators for measuring pH of following solutions?

   1. Lemon juice

   2. Vinegar

   3. Soap solution

   4. HCI solution

   5. NaOHsolution

10. Classify the following solutions as acidic, basic or  neutral

    1. A solution that has hydrogen ion concentration  1.0x 10-3M

    2. A solution that has hydrogen ion concentration  1.0x 10-10M

    3. A solution that has hydroxyl ion concentration  1.0x 10-3 M

    4. A solution that has hydroxyl ion concentration  1.0x 10-10 M

11. Standardize the given solution of hydrochloric acid, You are provided with 0.1 M NaoH solution

12. Give the Broansted-Lowry Definition of and acid and a base write an equation that illustrates the definition

13. How do you name a salt?

14. Define the following type of Salts

    1. Normal salts

    2. Acidic salts

    3. Basic salts

15. Describe the use of salts for food preservation

Section – C

Note: Attempt any two questions. All question carry equal marks.

Q. No.3:- a) Explain the Lewisconsent of acids and bases with examples

b) Define and explain pH scale

Q. No.4:- a) Explain the Arrhenius concept of acid and bases with examples?

b) What are limitations of Arrhenius concept of acids and bases?

Q. No.5:- a) Define the term Salt and Its types i.e. Acids and basic salts, Write equations for their preparation and give a characteristic property of each type of salt.

b) What is an indicator? Name a few commonly used indicators. Also discuss their color change in acidic and basic solutions.

Section – A

Q. No.1:- Circle the correct option. Each part carries one mark.

Section – B

Q. No.2:- Attempt any eleven parts from the following. The answer of each part should not exceed 3 to 4 lines.

1. What is catenation? Why organic compounds are so numerous?

2. Define isomerism, How it contributes to increase the number of organic compounds?

3. Define organic chemistry. What is importance of organic compounds in our lives?

4. What are organic compounds some compounds have carbon in them but they are not organic compounds, why?

5. What is the difference between an alkane and alkyl radical?

6. What do you mean by the term destructive distillation? explain

7. Write down the names, molecular, formula condensed and structural formulae of the first four hydrocarbons.

8. List major commercial sources of alkanes?

9. Identify the following compounds on the basis of functional groups they contain and encircle the  functional group

   1. CH3–Ch=CH3 CH3–CH2–COOH

   2. CH3–C=CH CH3–CO–CH3

   3. H–CO–CH3 CH3–CO-OCH3 CH3–CO–OH

10. Define hydrocarbons, how they are classified?

11. Explain saturated and unsaturated hydrocarbons with examples?

    1. Which system of naming is applied to organic compounds?

    2. How straight chains alkanes are named?

12. What are open chain compounds? Describe their types.

13. What are closed chain compounds, Describe their types

14. Give some uses of organic compounds

15. What are alkyl halides? Give examples

Section – C

Note: Attempt any two questions. All question carry equal marks.

Q. No.3:- a) what is a functional group?

b) Explain the functional groups of alcohols, ethers, aldehydes, ketones, Carboxylic acids, and esters.

Q. No.4:- a) Describe some general characteristics of organic compound, How they differ from               inorganic compounds?

b) Write down the identification tests for following organic compounds?

1. Carboxylic acids

2. Phenols

3. Amines

4. Aldehydes

5. ketones

Q. No.5:- a) Describe the main sources of organic compounds?

b) What do you mean by molecular formula, Structural formula and condensed formula for organic compounds, Explain with examples?

Section – A

Q. No.1:- Circle the correct option. Each part carries one mark.

Section – B

Q. No.2:- Attempt any eleven parts from the following. The answer of each part should not exceed 3 to 4 lines.

1. What are hydrocarbons? How are they classified, also draw a flow sheet?

2. Draw electron dot and cross structure for ethane, and ethyne.

3. Draw structural formulas of an alkane and alkene and an alkyne containing five carbon atoms.

4. How can you differentiate ethane from ethane? Give chemical reaction

5. What do you mean by dehydration reaction? Give example

6. How can you convert

   1. Ethene into ethane

   2. Ethene into glycol

   3. Ethene into Ethyl bromide

7. Write a chemical equation to show the preparation of an alkane from an alkene and and alkyne

8. Write a chemical equation to show the preparation of ethane from dehydration of an alcohol and dehydrohalogenation of alkyl halides.

9. Write a chemical equation to show the preparation of etyhyne from DE halogenation of 1,2- dihalide and tetra halide

10. Write chemical equation showing reaction of KMNO4 with ethane and ethyne

11. List some industrial uses of ethane and ethyne

12. Explain why a systematic method of naming chemical compounds in necessary

13. What are fossil fuels? Why these are called so? How global warming is caused by the burning of fossil fuels?

14. What are hydrocarbon? How are thy classified?

15. Why hydrocarbons are important for us?

Section – C

Note: Attempt any two questions. All question carry equal marks.

Q. No.3:- a) what are alkenes? Why they are called Olefins?

b) Describe chemical reaction of ethane with halogens and KMnO4

c) How ethane can be prepared from?

Q. No.4:- a) what are alkynes? Why they are called acetylenes?

b) Give chemical reaction of ethyne with halogens and KMnO4

c) How will you prepareethynefrom?

a. Vicinal Halide

b. The DE halogenation of tetra halide Or Describe two methods for the preparation of ethane

Q. No.5:- a) Describe two method for the preparing of alkanes?

b) Give physical properties of alkane?

c) Describe the chemical properties of alkanes under the following headings

a. Halogenation of alkanes

b. Combustion

Section – A

Q. No.1:- Circle the correct option. Each part carries one mark.

Section – B

Q. No.2:- Attempt any eleven parts from the following. The answer of each part should not exceed 3 to 4 lines.

1. Decide, where scores is a disaccharide or monosaccharide ,give reason

2. What are dextrose sugar and disaccharides?

3. What are oligosaccharides? How oligosaccharides are classified?

4. What is a peptide bond?

5. What are monosaccharaides? How they are classified? Give examples of important monosaccharaides?

6. Discuss the important functions of fats and oils in living organisms?

7. What are lipids and fatty acids?

8. What are proteins, Write their functions?

9. Explain sources and uses of lipids?

10. Give so cruces and uses of proteins?

11. Give sources and uses of carbohydrates?

12. Differentiate between fats and oils?

13. Define and explain the history of vitamins

14. Why are vitamins important for us?

15. Differentiate the two types of vitamins and explain with example

Section – C

Note: Attempt any two questions. All question carry equal marks.

Q. No.3:- a) what are Carbohydrates? How plants synthesize carbohydrates?

b) Give classification of carbohydrates?

c) Give the characteristics of monosaccharaides.

Q. No.4:- a) what are amino acids?

b) What are essential and non-essential amino acids?

c) Explain the amino acids are building blocks of proteins?

Q. No.5:- a) what are nucleic acids and their types?

b) Explain the structure and functions of each type of nucleic acids?

c) Describe the importance of nucleic acids?

Section – A

Q. No.1:- Circle the correct option. Each part carries one mark.

Section – B

Q. No.2:- Attempt any eleven parts from the following. The answer of each part should not exceed 3 to 4 lines.

1. By the help of diagram show DNA replication.

2. Define genotype and phenotype? 

3. Differentiate between natural and artificial selection ? 

4. Explain briefly Watson-crick model of DNA?

5. Why Mendel selected pea plant for his experiments and how/ why  he  succeeded in his work? 

6. Write a note on structure of DNA.

7. What do you mean albinism and albino? How pigment will produce? 

8. Define  the following. Genetics, Traits, Genes. 

9. Diagrammatically show central dogma. 

10. Draw punned square of Mendel’s Law of Independent Assortment? 

11. Which type of animals are selected for breeding? 

12. State Mendel’s law of independent assortment ?

13. What are breeds and cultivars?

14. State  Mendel’s argue for genetic experiments 

Section – C

Note: Attempt any two questions. All question carry equal marks.

Q. No.3:- Describe Mendel’s law of segregation. 

Q. No.4:- Explain the phenomenon of incomplete dominance with the help of example?

Q. No.5:- (a) What are the main sources of  variation is sexually reproducing populations ?

(b)What are the two major processes of organic evolution?

Section – A

Q. No.1:- Circle the correct option. Each part carries one mark.

Section – B

Q. No.2:- Attempt any eleven parts from the following. The answer of each part should not exceed 3 to 4 lines.

1. List the impurities present in the rain water?

2. Comment on the state meant, Knowledge of water is of great concern to every citizen?

3. What do you know about occurrence of water?

4. What are the reasons which make water very important?

5. What are the properties of pure water?

6. What are pathogenic microorganism?

7. Explain the composition of water or how can you split water by passing electricity?

8. List two ways in which lakes and streams become polluted

9. Give chemical equation for the

   1. Reaction of slaked lime with alum

   2. Carbonated rain water with lime stone

   3. Ca +2ions interact with sodium zeolite

10. How can buildings made of limestone be affected by acid rain?

11. Discuss that water acts as a universal solvent

12. List some disadvantages of water hardness

13. List steps used in sewage water treatment?

14. Complete and balanced the following chemical reactions

    1. Ca(HCO3)2(aq)+Ca(OH)2(s)⟶

    2. Mg+2 (aq)+Na2Z(s)⟶

    3. Mg+2 (aq)+CO3-2(aq)⟶

Section – C

Note: Attempt any two questions. All question carry equal marks.

Q. No.3:- a) what is water pollution

b) How household and industrial wastes cause water pollution?

c) List steps used in raw water treatment

Q. No.4:- a) what is meant by soft and hard water?

b) How hardens is produced in water?

c) What are types of hardens in water and how these hardness can be removed?

Q. No.5:- a) what are water borne diseases and explain how these are caused?

b) Explain important water borne disease?

Section – A

Q. No.1:- Circle the correct option. Each part carries one mark.

Section – B

Q. No.2:- Attempt any eleven parts from the following. The answer of each part should not exceed 3 to 4 lines.

1. What is meant by metallurgy? What is the role of various compounds in the development of industrial chemistry?

2. What is slaked lime? How is it produced?

3. What are fertilizers? Why they are needed 

4. Define the following terms

   1. Minerals

   2. Ores

   3. Gangue

5. Write some important ores with formals

6. Describe the following with an example

   1. Roasting

   2. Smelting

   3. floatation

7. Make a list of metallurgical operations

8. What are the advantages of fertilizers?

9. How many categories of fertilizers?

10. Outline basis reaction of Solvay process

11. Draw flow sheet diagram of Solvay process

12. What is petroleum? Describe the origin of petroleum and natural gas

13. What is ammonia Solvay process and make a list of raw materials for Solvay process

14. What are fossil fuels

15. Relate the study of chemistry to careers in industry

Section – C

Note: Attempt any two questions. All question carry equal marks.

Q. No.3:- a) How urea is manufactured on commercial scale? Explain with the help of flow sheet diagram

b) State the qualities which make urea as one of the widely used fertilizers

c) What are the important uses of urea?

Q. No.4:- a) Define the terms refining and fractional distillation of petroleum

b) Give principle of fractional distillation of petroleum

c) Describe the important fractions of petroleum along with their uses

Q. No.5:- a) How refining or purification of copper is done by electrolytic process

b) Describe in detail the various processes involved in the concentration of Ore with diagrams

Section – A

Q. No.1:- Circle the correct option. Each part carries one mark.

Section – B

Q. No.2:- Attempt any eleven parts from the following. The answer of each part should not exceed 3 to 4 lines.

1. State the law of Mass action , Express mathematically equilibrium constant for a general chemical reaction

2. What is the importance of equilibrium constant for a chemical reaction?

3. Write equilibrium constant expression for each of the following reactions

   1. H2O(g)⇌ H2(g)+1/2O2(g)

   2. CO(g)+2H2⇌ CH3OH(g)

   3. CoCI2(g) ⇌CO(g)+CI2

4. Bromine chloride BRCI decompose to form chlorine and bromine, For this reaction write

   1. Chemical equation

   2. Kc expression

   3. Units of Kc

5. Write equation showing the ionization of the following Arrhenius acids

   1. HI(aq) b  NHO3(aq) c H2SO4

6. Write equation showing the ionization of the following as Arrhenius acids

   1. HI(aq) b HCN(aq) C HCI (aq)

7. Give a brief comparison of three concepts of an acid and base

8. Classify water as proton donor or proton acceptor with HCI and NH3molecules

9. Identify the following compounds on the basis of function groups they contain and circle the functional group

10. What is meant by a alkyl radical ?How alkyl radicals are formed ?expalin with examples

11.  Write IUPAC names for the following alkanes

    1. CH3-CH2-CH2-CH2-CH2-CH3

    2. CH3-CH2-CH2-CH2-CH2-CH2-CH3

    3. CH3-CH2-CH2-CH2-CH2-CH2-CH2-CH2-CH2-CH3

12. What is halogenations? Discuss the chlorination of methane in bright sunlight

13. Complete the following reactions

    1. CH3-CH2+2[H],ZnHClAq⟶

    2. CH3-CH-CH3+2[H]ZnHClAq⟶

14. Give some physical properties of alkenes

15. Write chemical reaction of ethane and bromine, why this reaction is used to identify the unsaturated in molecule?

Section – C

Note: Attempt any two questions. All question carry equal marks.

Q. No.3:- a) Define the chemical equilibrium, Give some examples of Physical and chemical equilibrium

b) Explain graphically how a dynamic equilibrium can be established? 

c) Represent the above reaction diagrammatically?

Q. No.4:- a) ExplainLewis concept of acids and bases

b) What is Auto ionization of water? How it is used to establish the pH of water?

c) What is the importance of Kw?

Q. No.5:- a) Describe any three general characteristic of organic compounds?

b) Describe two method of preparation of alkanes?

c) Identify, A,B,C,D in the following reactions with IUPAC names.

i) Propene Br2⟶ AalcoholKOH⟶B

ii) EthylalcoholConc, H2SO4⟶CBr⟶D

Section – A

Q. No.1:- Circle the correct option. Each part carries one mark.

Section – B

Q. No.2:- Attempt any eleven parts from the following. The answer of each part should not exceed 3 to 4 lines.

1. Explain why agricultural and nutritional sciences are vital?

2. What is hydrogenation ?Explain hydrogenation of vegetable oil

3. List commercial uses of enzymes?

4. Explain the use of dextrose in drips?

5. Explain temperature variation in mesosphere and thermosphere with list of components?

6. Describe bonding in protein molecule?

7. Sculpture dioxide is a common pollutant from burning coal, State two effects caused by this pollutant?

8. List some effects of global warming.

9. Define acid rain, Write names of gases that cause acid rain

10. Explain how hard water hampers the cleansing action of soap.

11. Why are municipal water supplies treated with aluminum sulphate and slaked lime?

12. What are some health effects of biological contamination of water?

13. What is the principle of fraction distillation? How it is carried out

14. Describe the important fractions of petroleum along with their uses

Section – C

Note: Attempt any two questions. All question carry equal marks.

Q. No.3:- a) what are polysaccharides? What are their characteristic?

b) What are proteins? What are the function of proteins in the human body?

c) Discuss the source uses of Vitamins and diseases due to their deficiency

Q. No.4:- a) Discuss the properties and composition of pure water?

b) Show the effect produced by air pollutants with the help of comparative table

Q. No.5:- a) Write a detailed note on ammonia Solvay process. 

b) Describe the important fractions of petroleum along with their uses.

Section – A

Q. No.1:- Circle the correct option. Each part carries one mark.