Chemistry GK Multiple Choice Questions Set – 57

Here you will find GK MCQ Questions for Chemistry GK with Answers PDF Free Download based on the important concepts and topics given in the textbook as per new exam pattern. This may assist you to understand and check your knowledge about the Chemistry GK. Students also can take a free test of the Multiple Choice Questions of Chemistry GK. Each question has four options followed by the right answer.

Question 1.’

When a lead storage battery is discharged,

A. SO2 is evolved
B. Lead sulphate is consumed
C. Lead is formed
D. Sulphuric acid is consumed

D. Sulphuric acid is consumed

Question 2.

Carborundum is another name of

A. Silicon carbide
B. Silicon oxide
C. Calcium carbide
D. Calcium oxide

A. Silicon carbide

Question 3.

Brass gets discoloured in air due to constant exposure in presence of:

A. Aluminium phosphide
B. Hydrogen sulphide
C. Hydrogenated wafers
D. Aluminium sulphide

B. Hydrogen sulphide

Question 4.

The buffer action of blood is due to the presence of

A. HCI and NaCI
B. CI– and [CO3]2–
C. CI– and [HCO3]–
D. [HCO3]– and H2CO3

D. [HCO3]– and H2CO3

Question 5.

Which of the following pairs of materials serves as electrodes in rechargeable batteries commonly used in devices such as torch lights, electric shavers, etc. ?

A. Iron and cadmium
B. Nickel and cadmium
C. Lead peroxide and lead
D. Zinc and carbon

B. Nickel and cadmium

Question 6.

German silver is an alloy of

A. Copper, nickel and silver
B. Silver, copper and aluminium
C. Zinc, copper and nickel
D. Zinc, silver and copper

C. Zinc, copper and nickel

Question 7.

Which of the following is not present in German silver?

A. Copper
B. Nickel
C. Silver
D. Zinc

C. Silver

Question 8.

Bakelite is a co-polymer of Phenol and

A. Formaldehyde
B. Acetaldehyde
C. Benzaldehyde
D. Cinnaldehyde

A. Formaldehyde

Question 9.

In a Carbonyl group a carbon atom makes double bond with

A. Carbon
B. Oxygen
C. Hydrogen
D. None of the above

B. Oxygen

Question 10.

Which one of the following does not contain Silver ?

A. Ruby Silver
B. Lunar Caustic
C. German Silver
D. Horn Silver

C. German Silver

Question 11.

Haloarenes are more stable than haloalkanes due to

A. Resonance effect
B. Inductive effect
C. Hyper conjugative effect
D. All of them

A. Resonance effect

Question 12.

Which of the following is not an addition polymer?

A. Nylon
C. Polythene
D. Polystyrene

A. Nylon

Question 13.

Williamson’s synthesis is widely used in the laboratory preparation of

A. Alcohols
B. Ethers
C. Aldehydes
D. Esters

B. Ethers

Question 14.

Type metal used in printing press is an alloy of

A. Lead and copper
B. Lead and antimony
C. Lead and bismuth
D. Lead and zinc

B. Lead and antimony

Question 15.

The unit of ionic product of water (Kw) is :

A. Mol2 let-1
B. Mol2 let-2
C. Mol-1 let-2
D. Mol-1 let-1

B. Mol2 let-2

Question 16.

The polymer used in making plastic crockery is

A. Decron
B. Nylon
C. Bakelite
D. Melamine

D. Melamine

Question 17.

German silver, an alloy, does not contain the metal

A. Nickel
B. Zinc
C. Copper
D. Silver

D. Silver

Question 18.

Ultra purification of a metal is done by :

A. Slugging
B. Zone melting
C. Smelting
D. Leaching

B. Zone melting

Question 19.

Aluminium chloride is

A. Bronsted Lowry Acid
B. Arrhenius Acid
C. Lewis Acid
D. Lewis Base

C. Lewis Acid

Question 20.

The polymerisation of which often following is used in manufacturing of polythene in industry ?

A. Methane
B. Styrene
C. Acetylene
D. Ethylene

D. Ethylene

Chemistry GK MCQs all set

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