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 Death Valley of the United States is located at-

A. in the state of alaska
B. in the state of california
C. in the state of Maine
D. in the state of atlanta
Answer» C. in the state of Maine
2.

In the United States of America 'Silicon Valley' is located-

A. in Colorado
B. in california
C. in New Jersey
D. in Florida
Answer» C. in New Jersey
3.

Taylor Valley is located at-

A. in australia
B. In Antarctica
C. in Canada
D. in the United States
Answer» C. in Canada
4.

Anemia is caused by the deficiency of which element?

A. copper
B. Iron
C. calcium
D. magnesium
Answer» C. calcium
5.

Bhumisparsh mudra is related to Sarnath Buddha statue -

A. from the Kushan period
B. from the occult
C. from the Shunga period
D. from the Mauryan period
Answer» C. from the Shunga period
6.

Which is the second most abundant metal in the Earth's womb?

A. Iron
B. aluminum
C. Copper
D. Such as
Answer» B. aluminum
7.

The city situated on the plateau is-

A. Bucharest
B. madrik
C. jamnagar
D. Singapore
Answer» C. jamnagar
8.

The substance formed in the rusting of iron is -

A. ferric oxide
B. calcium chloride
C. Sodium chloride
D. Ferric and Ferrous Oxide
Answer» E.
9.

The valley of the dead is known, its -

A. to extreme heat
B. to extreme cold
C. to unusual depth
D. for high salinity
Answer» B. to extreme cold
10.

The area which is 'repository of minerals' in South America is-

A. Plateau of Brazil
B. plateau of bolivia
C. plateau of patagonia
D. ornico basin
Answer» D. ornico basin
11.

Bleaching powder is prepared by passing through which of the following -

A. slaked lime chlorine
B. Oxygen from slaked lime
C. carbon dioxide from slaked lime
D. chlorine from slaked lime
Answer» B. Oxygen from slaked lime
12.

Iron is found in abundance in -

A. in milk
B. in the egg
C. in juicy fruits
D. in green vegetables
Answer» E.
13.

Which of the following is the largest plateau?

A. Coconino
B. aquarius
C. Colorado
D. Colombia
Answer» D. Colombia
14.

Asbestos is made from -

A. calcium and magnesium
B. copper, zinc and manganese
C. lead and iron
D. calcium and zinc
Answer» B. copper, zinc and manganese
15.

The average height of the Tibetan plateau above sea level is-

A. 2 किमी.
B. 3 किमी.
C. 4 किमी.
D. 5 किमी.
Answer» E.
16.

Heinzclaver method is the commercial method of production of -

A. Caustic soda
B. nitric acid
C. sulfuric acid
D. bleaching powder
Answer» E.
17.

Hemoglobin is present in -

A. Iron
B. Copper
C. Nickel
D. cobalt
Answer» B. Copper
18.

In whose republic did the Mahaparinirvana of Mahatma Buddha take place?

A. of malls
B. of the Shakyas
C. of sails
D. of the Lichchhavis
Answer» B. of the Shakyas
19.

Nagarjuna belonged to which Buddhist sect?

A. sautrantik
B. Yogachara
C. Vaibhashik
D. secondary
Answer» E.
20.

The chemical substance present in bones and teeth is -

A. calcium phosphate
B. calcium chloride
C. calcium sulfate
D. calcium borate
Answer» B. calcium chloride
21.

The popular name of calcium sulphate used by doctors, painters, craftsmen etc. is -

A. lime of soda
B. potassium permanganate
C. gypsum
D. plaster of Paris
Answer» E.
22.

Potash alum is useful in water purification because it -

A. Kills micro-organisms.
B. It removes hardness of water.
C. It precipitates the colloidal solution.
D. It keeps the water soft.
Answer» D. It keeps the water soft.
23.

The chemical name of bleaching powder is-

A. calcium oxychloride
B. sodium bicarbonate
C. calcium hydroxide
D. calcium carbonate
Answer» B. sodium bicarbonate
24.

The chemical name of plaster of paris is

A. calcium sulfate
B. hydrated calcium carbonate
C. calcium hydrate
D. calcium sulfate hemihydrate
Answer» E.
25.

Which of the following is obtained as slag in a blast furnace?

A. calcium carbonate
B. calcium sulfate
C. calcium chloride
D. calcium silicate
Answer» E.
26.

Fire fighting clothes are made from-

A. asbestos
B. asbestos
C. talc
D. steatite
Answer» C. talc
27.

Which one of the following is not a metal mineral?

A. hematite
B. bauxite
C. gypsum
D. limonite
Answer» D. limonite
28.

The chemical name of bauxite is -

A. aluminum oxide
B. aluminum chloride
C. aluminum sulfate
D. hydrated alumina
Answer» E.
29.

Which of the following metals burns in nitrogen -

A. sodium
B. calcium
C. magnesium
D. Platinum
Answer» D. Platinum
30.

Which of the following metals is most abundant in the earth's crust?

A. aluminum
B. Iron
C. magnesium
D. sodium
Answer» B. Iron
31.

The ultra soft mineral talc is mainly -

A. manganese silicate
B. sodium silicate
C. Sodium phosphate
D. magnesium silicate
Answer» E.
32.

Which ore is mainly used for the extraction of magnesium metal?

A. magnesite
B. dolomite
C. Carnalite
D. keyserite
Answer» D. keyserite
33.

Lives in iodized salts

A. free iodine
B. calcium iodide
C. magnesium iodide
D. potassium iodide
Answer» E.
34.

Cryolite is added in the electrolysis of alumina because -

A. to increase electrical conductivity
B. To reduce the melting point of alumina
C. To reduce the anode effect
D. To separate the impurities of alumina
Answer» C. To reduce the anode effect
35.

Which one of the following statements is not correct regarding aluminium?

A. Aluminum hydroxide is amphoteric in nature.
B. Aluminum exists in the free state in nature.
C. Nitric acid has no effect on aluminum.
D. Hot concentrated sulfuric acid reacts with aluminum to give sulfur dioxide.
Answer» C. Nitric acid has no effect on aluminum.
36.

Sodium thiosulfate is used in photography

A. darken the picture
B. to whiten the picture
C. In the separation of silver bromide
D. To make the picture blur free
Answer» D. To make the picture blur free
37.

Eating salt gets wet during rainy season because -

A. Sodium chloride is a hygroscopicity.
B. Sodium chloride is excretory.
C. Sodium chloride contains some amount of sodium iodide.
D. Sodium chloride contains an adhesive impurity such as magnesium chloride.
Answer» E.
38.

The chemical name of washing soda is-

A. sodium carbonate
B. sodium bicarbonates
C. potassium carbonates
D. potassium bicarbonates
Answer» B. sodium bicarbonates
39.

The metal component of foliate is -

A. iron
B. potassium
C. manganese
D. magnesium
Answer» E.
40.

Sodium bicarbonate is useful in extinguishing fire because-

A. When heated, it decomposes to produce carbon dioxide, which extinguishes the fire.
B. It acts like a cover for the fire.
C. It releases water which extinguishes the fire.
D. It produces foam, which extinguishes the fire.
Answer» B. It acts like a cover for the fire.
41.

Where did Mahatma Buddha give his first Dharmachakrapravartan?

A. in Pataliputra
B. in Vaishali
C. in Sarnath
D. in Lumbini
Answer» D. in Lumbini
42.

The chemical name of the hypo solution used in photography is

A. sodium hydroxide
B. silver bromide
C. sodium thiosulfate
D. hydrogen peroxide
Answer» D. hydrogen peroxide
43.

Milk of Magnesia is a suspension of -

A. of magnesium sulfate
B. of magnesium carbonates
C. of magnesium hydroxide
D. of magnesium chloride
Answer» D. of magnesium chloride
44.

Sodium metal can be placed in -

A. ether
B. in kerosene
C. in petrol
D. in water
Answer» C. in petrol
45.

The base used as an antiacid is

A. calcium hydroxide
B. barium hydroxide
C. magnesium hydroxide
D. silver hydroxide
Answer» D. silver hydroxide
46.

What is responsible for making pyrex glass stronger?

A. potassium carbonate
B. ferrous oxide
C. borax
D. ferric oxide
Answer» D. ferric oxide
47.

To protect the iron sheet from rusting, which of the following metals is coated on it?

A. lead
B. Chromium
C. Such as
D. Nickel
Answer» D. Nickel
48.

Industrial manufacturing is done by salve process

A. ammonia
B. chlorine
C. sodium carbonates
D. sulfuric acid
Answer» D. sulfuric acid
49.

If a piece of sodium is put in water, it will

A. will drown
B. will float
C. float will burn
D. will smoke
Answer» D. will smoke
50.

Which of the following is used to dissolve noble metals?

A. nitric acid
B. hydrochloric acid
C. sulfuric acid
D. Aquarius
Answer» E.