General Chemistry (Part 1)

Question 1

Beryllium Sulphate is less soluble in water due to:

Answer 1

high inflammable energy

Question 2

What is the name of that system which uses radioactivity to decide the period of materials of pre his tone period?

Answer 2

carbon dating

Question 3

Cement is made hard with

Answer 3

hydration and dissociation of water

Question 4

What happens when a chemical bond is formed?

Answer 4

Energy is always absorbed.

Question 5

Which among the following is a carbohydrate?

Nylon | Cane sugar | Turpentine | Hydrogen peroxide

Answer 5

cane sugar

Question 6

Which of the following states maximum iron ore is found?

FeCO3 | Fe2O3 | Fe3O4 | FeS2

Answer 6

Fe203

Question 7

Which one of the following metals pollutes the air of a city having large number of automobiles?

Cadmium | Chromium | Lead | Copper

Answer 7

lead

Question 8

What is the Chemical name for baking soda?

Answer 8

sodium bicarbonate

Question 9

An atomic pile is used for:

Answer 9

conducting nuclear fission

Question 10

Which of the following gases is present under pressure in soft drinks?

Oxygen | Nitrogen | Carbon dioxide | Nitrous oxide

Answer 10

carbon dioxide

Question 11

The substance which does not expand on going from liquid state to solid state is:

Answer 11

type metal

Question 12

Heart pacemakers is:

Answer 12

uranium

Question 13

The element which is commonly used in nuclear for producing electricity by nuclear fission is:

Answer 13

uranium

Question 14

Table salt gets moist during rainy season because:

Answer 14

Sodium chloride contains hygroscopic impurities like magnesium chloride.

Question 15

Which of the following is used as a lubricant in heavy machines?

Bauxite | Sulfur | Phosphorus | Graphite

Answer 15

graphite

Question 16

The anode in a dry cell consists of:

Answer 16

zinc

Question 17

Which of the following is used to iodine common salt?

Potassium Iodate | Iodine | Potassium Iodide | Sodium Iodide

Answer 17

potassium iodide

Question 18

Milk is a colloidal system in which:

Answer 18

Fat is dispersed in water.

Question 19

The enzyme that converts glucose to ethyl alcohol is:

Answer 19

zymase

Question 20

Silk fiber chemically is:

Answer 20

protein

Question 21

Who developed Hydrogen Bomb?

Answer 21

Edward Teller

Question 22

When there are two electrons in the same orbital they have:

Answer 22

opposite spin

Question 23

Galvanization is the:

Answer 23

deposition of zinc on iron

Question 24

Fermentation of milk to curd is due to:

Answer 24

Lactobacillus

Question 25

By which organic compound all the oils are known?

Answer 25

hydrocarbon

Question 26

The atomic number of Carbon is 6 and its atomic mass is How many are there protons in the nucleus of Carbon?

Answer 26

6

Question 27

Who developed atom bomb?

Answer 27

J. Robert Oppenheimer

Question 28

The major harmful gas emitted by automobile vehicle which causes air pollution is:

Answer 28

carbon dioxide

Question 29

The add used in lead storage cells is:

Answer 29

sulfuric acid

Question 30

Milk tastes sour when kept in the open for some time due to the formation of:

Answer 30

lactic acid

Question 31

What is the most commonly used substance in fluorescent tubes?

Answer 31

mercury vapor and argon

Question 32

What is “milk of magnesia” chemically?

Answer 32

magnesium hydroxide

Question 33

Bronze is an alloy of

Answer 33

copper and tin

Question 34

The natural source of hydrocarbon is:

Answer 34

crude oil

Question 35

Which of the following is chiefly present in LPG (Liquefied Petroleum Gas)?

Answer 35

butane

Question 36

Which one of the following metals is used to galvanize iron? Copper | Lead | Zinc | Mercury

Answer 36

zinc

Question 37

Which of the following is not a precious semiprecious stone? Sapphire | Ruby | Pearl | Emerald

Answer 37

pearl

Question 38

Which among the following metals provides atmospheric oxide? Sodium| Silver| Aluminum | Calcium

Answer 38

aluminum

Question 39

Humburger effect is otherwise known as

Answer 39

chloride shift

Question 40

Which among the following elements is found in maximum percentage in the human body? Carbon | Hydrogen | Nitrogen | Oxygen

Answer 40

oxygen

Question 41

Which among the following stage is suitable indicator when solution of sodium carbonate is mixed with sulfuric acid? Methylene blue | Methyl red | Phenolphthalein | Methyl orange

Answer 41

methyl orange

Question 42

Which among the following is pure matter? Carbon dioxide | Brass | Air | Iron

Answer 42

carbon dioxide

Question 43

Which among the following coal contains 90 percent of carbon? Anthracite | Bitumen | Lignite | Peat

Answer 43

anthracite

Question 44

Bauxite is an alloy of which of the following metals? Aluminum | Silver | Tin | Iron

Answer 44

aluminum

Question 45

Bauxite is an alloy of which of the following metals?

Answer 45

proton and neutron

Question 46

Milk of Magnesia is a suspension of:

Answer 46

magnesium hydroxide

Question 47

Quartz is made of:

Answer 47

sodium silicate

Question 48

Which of the following is ozone depleting pesticide? D.D.T. | Benzene | Methyl bromide | Ethylene ozonide

Answer 48

methyl bromide

Question 49

Galvanized iron is made by coating iron with:

Answer 49

zinc

Question 50

Which is abundant in Gobar gas?

Answer 50

methane