GK Quiz on Science: Chemistry Set XII

GK Quiz on Science: Chemistry Set XII, in this set you will find repository of 10 Multiple Choice Questions that will help you to attune and equipped for different competitive examinations as well as academic examinations.

1. In the endothermic reaction:

A. Heat is absorbed

B. Heat is evolved

C. Heat doesn't change

D. Temperature remains constant

2. The chemical reactions which occur in one direction (from left to right) are called:

A. Reversible reaction

B. Irreversible reactions

C. Endothermic reactions

D. Exothermic reactions

3. The catalyst is a substance through which the rates of chemical reactions are:

A. Increased

B. Decreased

C. Changed

D. None of these

4. Who is the inventor of the catalyst?

A. Berzeleous

B. Rutherford

C. Louis

D. Kosell

5. The catalyst employed in the hydrogenation process of the oils is:

A. Fe

B. Ni

C. Mo

D. Pt

6. The catalyst used in the lead chamber process is:

A. Oxide of the nitrogen

B. Platinum

C. Nickel

D. MnO₂

7. The catalyst employed in the production of H2S04 by the Contact process is:

A. The pieces (powder) of iron

B. The pieces (powder) of platinum

C. Oxide of nitrogen

D. Nickel metal

8. The employed catalyst in the production of ammonia through the Haber's process is:

A. Nickel

B. Iron

C. Platinum

D. Molybdenum

9. In the contest of an alternative sources of energy and practical bio-fuel ethanol can be obtained from-which of the following?

A. Potato

B. Paddy

C. Sugarcane

D. Wheat

10. When the water vapour is poured on the red heated coke then the mixture of carbon monoxide and hydrogen gas is obtained which is:

A. Coal gas

B. Water gas

C. Producer gas

D. Bio gas

Question No.	Answer
1	A
2	A
3	C
4	A
5	B
6	A
7	B
8	D
9	C
10	B

GK Quiz on Science: Chemistry Set XI

GK Quiz on Science: Chemistry Set XI, in this set you will find repository of 10 Multiple Choice Questions that will help you to attune and equipped for different competitive examinations as well as academic examinations.

1. What is the pH value of pure water?

A. 6.4

B. 6.6

C. 7

D. 7.4

2. Which of the following is called philosopher's wool?

A. Zinc bromide

B. Zinc nitrate

C. Zinc oxide

D. Zinc chloride

3. The container employed in the process of electrolysis is called:

A. Ammeter

B. Voltmeter

C. Voltammeter

D. Calorimeter

4. In the process of electrolysis oxidation occurs at:

A. Cathode

B. Anode

C. Both of these

D. None of these

5. In the process of electrolysis reduction occurs at :

A. Cathode

B. Anode

C. Both of these

D. None of these

6. Which of the following is utilized in the form of electrolyte of the dry cell (battery)?

A. Ammonium chloride and zinc chloride

B. Sodium chloride and calcium chloride

C. Magnesium chloride and zinc chloride

D. Ammonium chloride and calcium chloride

7. The iron container or vessel is galvanized by :

A. Chromium

B. Zinc

C. Aluminium

D. Nickel

8. The process of corrosiondoesn’t take place in which of the following metals, when these metals are left free in the air:

A. Iron

B. Copper

C. Gold

D. Silver

9. In the galvanic cell, the process takes place is:

A. Transformation of the electrical energy into the chemical energy

B. Transformation of the chemical energy into the electrical energy

C. Transformation of light energy into the electrical energy

D. Transformation of electrical energy into the light energy

10. In the exothermic reaction:

A. Heat is absorbed

B. Heat is evolved

C. Heat doesn't change

D. Temperature remains constant

Question No.	Answer
1	C
2	C
3	C
4	B
5	A
6	A
7	B
8	C
9	B
10	B

GK Quiz on Science: Chemistry Set X

GK Quiz on Science: Chemistry Set X, in this set you will find repository of 10 Multiple Choice Questions that will help you to attune and equipped for different competitive examinations as well as academic examinations.

1. The oxidation state of manganese (Mn) in KMnO₄ is:

A. +2

B. -2

C. +7

D. -7

Ans: C

2. The element whose oxidation state in its every compound is same:

A. Carbon

B. Fluorine

C. Hydrogen

D. Oxygen

Ans: B

3. The oxidation state of oxygen in OF₂ is:

A. +2

B. -2

C. +1

D. -1

Ans: A

4. The acid is a substance which:

A. Accepts (gains) electron

B. Donates electrons

C. Provides (donates) proton

D. Donates OH- ion

Ans: C

5. The alkali is a substance which:

A. Provides (donates) proton

B. Accepts proton

C. Donates electron

D. Accepts electron pair

Ans: B

6. The substance which makes the blue litmus paper red is :

A. Acid

B. Base

C. Alkali

D. Salt

Ans: A

7. The substance which makes the red litmus paper blue is:

A. Acid

B. Alkali

C. Salt

D. None of these

Ans: B

8. The first time pH value measurement is done by:

A. Leviatiae

B. Pristley

C. Cauvendish

D. Sorensan

Ans: D

9. The average pH value of the human blood is:

A. 5.4

B. 6.2

C. 7.4

D. 8.7

Ans: C

10. The average pH value of the milk is:

A. 6.1

B. 6.6

C. 7.4

D. 8

Ans:  B

GK Quiz on Science: Chemistry Set IX

GK Quiz on Science: Chemistry Set IX, in this set you will find repository of 10 Multiple Choice Questions that will help you to attune and equipped for different competitive examinations as well as academic examinations.

1. Mohr salt is:

A. Simple salt

B. Hybrid salt

C. Double salt

D. Complex salt

2. Hydrogen is the most fundamental component of all the acid, it is firstly stated by:

A. Arrhenius

B. Bronsted

C. Devi

D. Lori

3. In which of the following silver is not to be present?

A. Horn silver

B. German silver

C. Ruby silver

D. Lunar caustic

4. The gaseous law of diffusion was propounded by:

A. Boyle

B. Charles

C. Avogadro

D. Grahm

5. The smoke is the example of:

A. the solution of solid in the liquid

B. the solution of liquid in the liquid

C. the solution of solid in the gas

D. the solution of gas in the liquid

6. The air is the example of:

A. the solution of solid in the gas

B. the solution of gas in the gas

C. the solution of liquid in the gas

D. the solution of liquid in the solid

7. The alloys are:

A. the solution of solid in the solid

B. the solution of solid in the liquid

C. the solution of gas in the liquid

D. the solution of gas in the gas

8. The milk is the example of:

A. Solution

B. Colloidal solution

C. Emulsion

D. Air-solution

9. The pH value of any solution is 6 then the hydrogen ion concentration in the solution would be:

A. 10^-6M

B. 10^-10M

C. 10¹⁰M

D. 10⁶M

10. The hydrogen ions concentration in any solution is 10-4 M the concentration of hydroxyl ions in it would be:

A. 10^-4

B. 10^-14  

C. 10^-10

D. 10⁴

Question	Answer
1	C
2	C
3	B
4	D
5	C
6	B
7	A
8	C
9	A
10	C

GK Quiz on Science: Chemistry Set VIII

GK Quiz on Science: Chemistry Set VIII, in this set you will find repository of 10 Multiple Choice Questions that will help you to attune and equipped for different competitive examinations as well as academic examinations.

1. What is the shape of the ethylene molecule?  

A. Linear

B. Tetrahedral

C. Coplanar triangular

D. Hectohedral 

2. Which of the following compound is tetrahedral?  

A. Ammonia

B. Carbon tetrachloride

C. Water

D. Acetylene 

3. Through the fused sodium chloride, electric current can pass out due to the presence of:

A. Free electron

B. Free ion

C. Free molecule

D. The atoms of sodium and chlorine 

4. The higher boiling point of the water occurs due to:

A. Its more specific heat

B. Its more value of the dielectric constant

C. Less molecular disassociation in H20

D. Presence of hydrogen bonding among the molecules of H20 

5. The tendency to donate the electron is called:

A. Oxidation

B. Reduction

C. catylisation

D. self-induction 

6. The tendency to accept the electron is called:

A. Oxidation

B. Reduction

C. catylisation

D. Self induction 

7. The hydrogen burning process is directly associated with:

A. Hydrolysis

B. Reduction

C. Oxidation

D. Hydrogenation  

8. The rusting of the iron is the example of:

A. Oxidation

B. Reduction

C. Polymerisation

D. Galvanization 

9. In which of the following chlorine has + 1 oxidation number?

A. Hypochlorous acid

B. Hydrochloric acid

C. Zinc chloride

D. Chlorine  

10. The element chromium (Cr) has its oxidation number in K2Cr2O7:

A. + 6 

B. - 2 

C. + 7 

D. - 7

Question	Answer
1.	C
2.	B
3.	B
4.	B
5.	A
6.	B
7.	C
8.	A
9.	A
10.	A