Explore topic-wise MCQs in Testing Subject.

This section includes 657 Mcqs, each offering curated multiple-choice questions to sharpen your Testing Subject knowledge and support exam preparation. Choose a topic below to get started.

1.

The technique of calculating the age of fossil organisms is -

A. Radiocarbon dating
B. Electroporation
C. Counting the annual rings
D. Micromanipulation
Answer» B. Electroporation
2.

What do you understand by the term Espuma?

A. Foam
B. Soap
C. Salt
D. Calcium
Answer» B. Soap
3.

What is the second largest cornponent in milk?

A. Fat
B. Minerals
C. Water
D. Sugar
Answer» B. Minerals
4.

Amniocentesis is a technique used -

A. to determine the sex of fetus
B. to test of amino acid
C. to test brain
D. None of the above
Answer» B. to test of amino acid
5.

Consider the following and select the right option.

A. Stomach - Hydrochloric acid
B. Ant - formic acid
C. Both are right
D. Both are wrong
Answer» D. Both are wrong
6.

Which one is not metal?

A. sulphar
B. sugar
C. nitrogen
D. all
Answer» E.
7.

Air is -

A. Compound
B. Element
C. Mixture
D. Solution
Answer» D. Solution
8.

Atomic themy of matter was given by

A. Avogadro
B. Dalton
C. Newton
D. Pascal
Answer» C. Newton
9.

Which is also called Stranger Gas?

A. Xenon
B. Neon
C. Argon
D. Nitrous oxide
Answer» B. Neon
10.

Which one of the following is an example of a gel?

A. Cheese
B. Milk
C. Face cream
D. Shaving cream
Answer» D. Shaving cream
11.

The unit to measure the flow of water is -

A. Micro Mho
B. Ohm meter
C. Milli curie
D. Cusecs
Answer» E.
12.

NaCI has .

A. Non-polar bonds
B. Polar covalent bonds
C. Metallic bonds
D. Ionic bonds
Answer» E.
13.

Whatis Zeolite?

A. Hydrated Aluminosilicate
B. Hydrated Calcium Sulphate
C. Dehydrated Aluminosilicate
D. Dehydrated Calcium Sulphate
Answer» B. Hydrated Calcium Sulphate
14.

Silica gel is a -

A. moisturizer
B. flavouring agent
C. drying agent
D. delicious food
Answer» D. delicious food
15.

Acids generate:

A. Acids generate hydrogen ions.
B. Bases generate hydroxide ions.
C. Both are correct
D. Both are incorrect
Answer» D. Both are incorrect
16.

Nylon threads are made of -

A. Polyester polymer
B. Polyamide polymer
C. Polyvinyl polymer
D. Polysaccharide
Answer» C. Polyvinyl polymer
17.

Calcium salts used as fertilizer is

A. Calcium Carbide
B. Calcium Carbonate
C. Calcium Cyanide
D. Calcium Sulphate
Answer» E.
18.

Which one of the following statements is not correct? Vulcanisation of rubber makes it -

A. soft and flexible
B. strong and hard
C. chemical resistant
D. withstand higher temperatures
Answer» B. strong and hard
19.

Which one of the following noble gases is not found in the atmosphere?

A. Argon
B. Krypton
C. Radon
D. Xenon
Answer» D. Xenon
20.

Which acid is used in rubber, textile, leather and electroplating industries?

A. Ethanoic acid
B. Methanoic acid
C. Malanic acid
D. Butairic acid
Answer» C. Malanic acid
21.

Which among the following stage is suitable indicator when solution of sodium carbonate is mixed with sulphuric acid?

A. Methylene blue
B. Methyl red
C. Phenolphthaline
D. Methyl orange
Answer» E.
22.

Acetic acid is know as -

A. Caustic soda
B. Spirit
C. Baking soda
D. Vinegar
Answer» E.
23.

Which of the following is biode- gradable?

A. Paper
B. D.D.T.
C. Aluminium
D. Plastic
Answer» B. D.D.T.
24.

The reaction between an acid and a base to give a salt and water is known as a -

A. Neutralisation reaction
B. Reduction reaction
C. Oxidation reaction
D. Exothermic reaction
Answer» B. Reduction reaction
25.

Which one of the following nonmetals shows allotropy in the liguid state?

A. Carbon
B. Sulphur
C. Phosphorous
D. Bromine
Answer» C. Phosphorous
26.

Commercial nitric acid is coloured because it contains dissolved

A. Oxygen
B. Nitrous oxide
C. Nitrogen dioxide
D. Coloured impurities
Answer» D. Coloured impurities
27.

Compound having tetrahedral structure is .

A. C2H4
B. C2H2
C. CH4
D. None of these
Answer» D. None of these
28.

which is stable com- pound. This causes oxygen starvation in the body tissues and eventually causes death by suffocation.ammonium phosphate.

A. N4H6PO4
B. (NH4)3PO
C. (NH4)3PO4
D. (NH4)2PO4
Answer» D. (NH4)2PO4
29.

What is a Bakelite?

A. Solution
B. Acid
C. Base
D. Polymer
Answer» E.
30.

Which one of the following metals is used to galvanise iron?

A. Copper
B. Lead
C. Zinc
D. Mercury
Answer» D. Mercury
31.

Which among the following is a carbohydrate?

A. Nylon
B. Cane-sugar
C. Turpentine
D. Hydrogen peroxide
Answer» C. Turpentine
32.

Which of the following is present in Nail polish remover?

A. Citric acid
B. Acetone
C. Ethylene
D. Benzene
Answer» C. Ethylene
33.

Malathion is a/an -

A. insecticide
B. fumigant
C. preservative
D. pesticide
Answer» B. fumigant
34.

Zn + 2 HCl = H2 + ZnCl, is an example of which type of reaction?

A. Double displacement reaction
B. Combination reaction
C. Single displacement reaction
D. Decomposition reaction
Answer» D. Decomposition reaction
35.

Ginger is an example of -

A. Modified Node
B. Modified Root
C. Modified Stem
D. Tap Root
Answer» D. Tap Root
36.

Silicon is an example of -

A. A metal
B. A non- metal
C. A metalloid
D. Both (2) and (3)
Answer» D. Both (2) and (3)
37.

Bakelite is a copolymer of Phenol and -

A. Formaldehyde
B. Acetaldehyde
C. Benzaldehyde
D. Cinnaldehyde
Answer» B. Acetaldehyde
38.

Bauxite is an alloy of which of the following metals?

A. Aluminium
B. Silver
C. Tin
D. Iron
Answer» B. Silver
39.

Which of the following metals are present in hemoglobin and chlorophyll, respectively?

A. Fe and Mg
B. Fe and Zn
C. Mg and Zn
D. Zn and Mg
Answer» B. Fe and Zn
40.

CuO + H2 = Cu + H2O. This equation is an example of -

A. Oxidation
B. Decomposition
C. Reduction
D. Redox
Answer» E.
41.

The drug 'Marijuana' is a

A. sedative
B. mental stimulant
C. hallucinating substance
D. tranquillizer
Answer» B. mental stimulant
42.

An example of semiconductor is -

A. German silver
B. Germanium
C. Phosphorous
D. Arsenic
Answer» C. Phosphorous
43.

Nail polish remover contains?

A. Benzene
B. acetic acid
C. acetone
D. petroleum ether
Answer» D. petroleum ether
44.

Bromine is-

A. Colorless gas insoluble in water
B. A highly inflammable gas
C. A Black solid
D. A red liquid
Answer» E.
45.

Which is not a type of elements?

A. Metals
B. Non Metals
C. Metalloids
D. Gases
Answer» D. Gases
46.

Electrons in the highest energy level of an atom are called .

A. valence protons
B. orbital protons
C. valence electrons
D. orbital electrons
Answer» D. orbital electrons
47.

The nuclear particles which are assumed to hold the nucleons together are -

A. positrons
B. neutrons
C. electrons
D. mesons
Answer» E.
48.

Milk of magnesia is a suspension of

A. magnesium sulphate
B. magnesium carbonate
C. magnesium hydroxide
D. magnesium Chloride
Answer» D. magnesium Chloride
49.

Minamata disease is a nervous disorder caused by eating fish, polluted with

A. Iron
B. Lead
C. Mercury
D. Nickel
Answer» D. Nickel
50.

Which of the following is used to denature ethanol?

A. Methyl alcohol
B. Propyl alcohol
C. Phenol
D. Methane
Answer» B. Propyl alcohol