Explore topic-wise MCQs in Chemistry.

This section includes 38 Mcqs, each offering curated multiple-choice questions to sharpen your Chemistry knowledge and support exam preparation. Choose a topic below to get started.

1.

Solder

A. tin and lead
B. tin and copper
C. tin, copper and zinc
D. tin, lead and zinc
Answer» B. tin and copper
Discussion
2.

Pyrethrin

A. a seed plant
B. an insect
C. a bacterium
D. a fungus
Answer» B. an insect
Discussion
3.

'Acid rain'

A. carbon dioxide
B. carbon monoxide
C. methane
D. nitrous oxide and sulphur dioxide
Answer» E.
Discussion
4.

Vinegar

A. oxalic acid
B. citric acid
C. hydrochloric acid
D. acetic acid
Answer» E.
Discussion
5.

Indane gas

A. butane and hydrogen
B. butane and oxygen
C. butane and propane
D. methane and oxygen
Answer» D. methane and oxygen
Discussion
6.

Which one of the following elements is used in the manufacture of

A. Graphite
B. Phosphorus
C. Silicon
D. Sodium
Answer» C. Silicon
Discussion
7.

Milk

A. mixture
B. element
C. metal
D. None of these
Answer» B. element
Discussion
8.

'Yellow Cake'

A. a crude from of heroin
B. a crude from of cocaine
C. uranium oxide
D. unreformed gold
Answer» D. unreformed gold
Discussion
9.

Uric acid

A. Soda water
B. Rancid butter
C. Sour milk
D. Urine of mammals
Answer» E.
Discussion
10.

Source of Vitamin

A. Nitric acide
B. Ascorbic acid
C. Oxalic acid
D. Maleic acid
Answer» C. Oxalic acid
Discussion
11.

Blood cells

A. hypertonic
B. isotonic
C. equimolar
D. hypotonic
Answer» C. equimolar
Discussion
12.

Alum purifies

A. Absorption
B. Dialysis
C. Emulsification
D. Coagulation
Answer» E.
Discussion
13.

Which gas is responsible for the

A. Oxygen
B. Carbon monoxide
C. Carbon dixide
D. Ammonia
Answer» D. Ammonia
Discussion
14.

Cobalt (60) isotope

A. heart diseases
B. skin diseases
C. diabetes
D. cancer
Answer» E.
Discussion
15.

Which of the following is used as a

A. Sodium sulphate
B. Saccharin
C. BHT
D. Sodium metabisulphite
Answer» E.
Discussion
16.

When a nutrient like

A. Smog
B. Eutrophication
C. Green house effect
D. None of these
Answer» C. Green house effect
Discussion
17.

Which one is a

A. Table salt
B. Sugar
C. Iodine
D. Potassium Iodide
Answer» D. Potassium Iodide
Discussion
18.

What is a mixture of

A. Glass
B. Cement
C. Paint
D. Gun powder
Answer» E.
Discussion
19.

Alum

A. an analgesic
B. a fertilizer
C. a disinfectant
D. a purifier for water
Answer» E.
Discussion
20.

In surgery,

A. Copper
B. Iron
C. Aluminium
D. Titanium
Answer» E.
Discussion
21.

Commonly used antiseptic

A. o-chlorophenoxylenol + terepineol
B. o-cresol + terepineol
C. phenol + terepineol
D. chloroxylenol + terepineol
Answer» E.
Discussion
22.

Which one among the following is

A. Graphite
B. Glass
C. Brass
D. Steel
Answer» B. Glass
Discussion
23.

The metal compound commonly found in

A. Tin
B. Lead
C. Copper
D. Zinc
Answer» C. Copper
Discussion
24.

In chemical terms, what are

A. Hydrated chlorides
B. Double nitrate
C. Double sulphates
D. Nitrates of aluminium
Answer» D. Nitrates of aluminium
Discussion
25.

Which one of the following is not present in

A. Clay
B. Alumina
C. Alum
D. Gypsum
Answer» D. Gypsum
Discussion
26.

Food

A. zinc is costlier than tin
B. zinc has a higher melting point than tin
C. zinc is more reactive than tin
D. zinc is less reactive than tin
Answer» D. zinc is less reactive than tin
Discussion
27.

Silicon

A. solar energy devices
B. semiconductors
C. transistors
D. All of these
Answer» E.
Discussion
28.

The new

A. Escherichia coli
B. Saccharomyces cerevisiae
C. Bacillus subtilis
D. Pseudomonas putida
Answer» E.
Discussion
29.

Aerobic oxidation is caused by

A. aerobic batteries in presence of excess of oxygen
B. anaerobic bacterias in presence of insufficient oxygen
C. aerobic bacterias in the absence of oxygen
D. both anaerobic and aerobic bacterias in any condition
Answer» B. anaerobic bacterias in presence of insufficient oxygen
Discussion
30.

Jaundice in human beings affects which of the body part ?

A. Liver
B. Eye
C. Skin
D. None of these
Answer» B. Eye
Discussion
31.

Match the List-I with List-II and select the correct answer using the codes given below

A. A.
B. B.
C. C.
D. D.
Answer» E.
Discussion
32.

'White lung cancer' is caused by

A. asbestos
B. silica
C. textiles
D. paper
Answer» D. paper
Discussion
33.

A fertile soil is likely to have a pH of

A. 3
B. 9
C. 6-7
D. 14
Answer» D. 14
Discussion
34.

'Freon' used as refrigerants is chemically

A. Chlorinated hydrocarbon
B. Fluorinated hydrocarbon
C. Chlorofluoro hydrocarbon
D. Fluorinated aromatic compound
Answer» D. Fluorinated aromatic compound
Discussion
35.

Which one of the following diseases is caused through the wound or injury or surfaces of unsterilized surgical instruments ?

A. Kala Azar
B. Chancroid
C. Diphtheria
D. Tetanus
Answer» E.
Discussion
36.

Acid rain is caused due to emission of which of the following in to the atmosphere ?

A. Oxides of nitrogen and sulphur
B. Carbon dioxide and carbon monoxide
C. Ozone and carbon dioxide
D. Carbon monoxide and nitrogen
Answer» B. Carbon dioxide and carbon monoxide
Discussion
37.

The Haffkine institute, mumbai is known for its workon the production of

A. plague vaccine
B. Leprosy vaccine
C. Tetanus vaccine
D. Polia vaccine
Answer» C. Tetanus vaccine
Discussion
38.

The process which does not evolve CO

A. burning
B. breathing
C. organic delay
D. photosynthesis
Answer» E.
Discussion