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Physical and Chemical Principles > General Chemistry (Part 1) > Flashcards

General Chemistry (Part 1) Flashcards

1
Q

Beryllium Sulphate is less soluble in water due to:

A

high inflammable energy

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2
Q

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

A

carbon dating

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3
Q

Cement is made hard with

A

hydration and dissociation of water

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4
Q

What happens when a chemical bond is formed?

A

Energy is always absorbed.

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5
Q

Which among the following is a carbohydrate?

Nylon | Cane sugar | Turpentine | Hydrogen peroxide

A

cane sugar

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6
Q

Which of the following states maximum iron ore is found?

FeCO3 | Fe2O3 | Fe3O4 | FeS2

A

Fe203

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7
Q

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

Cadmium | Chromium | Lead | Copper

A

lead

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8
Q

What is the Chemical name for baking soda?

A

sodium bicarbonate

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9
Q

An atomic pile is used for:

A

conducting nuclear fission

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10
Q

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

Oxygen | Nitrogen | Carbon dioxide | Nitrous oxide

A

carbon dioxide

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11
Q

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

A

type metal

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12
Q

Heart pacemakers is:

A

uranium

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13
Q

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

A

uranium

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14
Q

Table salt gets moist during rainy season because:

A

Sodium chloride contains hygroscopic impurities like magnesium chloride.

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15
Q

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

Bauxite | Sulfur | Phosphorus | Graphite

A

graphite

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16
Q

The anode in a dry cell consists of:

A

zinc

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17
Q

Which of the following is used to iodine common salt?

Potassium Iodate | Iodine | Potassium Iodide | Sodium Iodide

A

potassium iodide

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18
Q

Milk is a colloidal system in which:

A

Fat is dispersed in water.

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19
Q

The enzyme that converts glucose to ethyl alcohol is:

A

zymase

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20
Q

Silk fiber chemically is:

A

protein

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21
Q

Who developed Hydrogen Bomb?

A

Edward Teller

22
Q

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

A

opposite spin

23
Q

Galvanization is the:

A

deposition of zinc on iron

24
Q

Fermentation of milk to curd is due to:

A

Lactobacillus

25
Q

By which organic compound all the oils are known?

A

hydrocarbon

26
Q

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

27
Q

Who developed atom bomb?

A

J. Robert Oppenheimer

28
Q

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

A

carbon dioxide

29
Q

The add used in lead storage cells is:

A

sulfuric acid

30
Q

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

A

lactic acid

31
Q

What is the most commonly used substance in fluorescent tubes?

A

mercury vapor and argon

32
Q

What is “milk of magnesia” chemically?

A

magnesium hydroxide

33
Q

Bronze is an alloy of

A

copper and tin

34
Q

The natural source of hydrocarbon is:

35
Q

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

36
Q

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

Copper | Lead | Zinc | Mercury

37
Q

Which of the following is not a precious semiprecious stone?

Sapphire | Ruby | Pearl | Emerald

38
Q

Which among the following metals provides atmospheric oxide?

Sodium| Silver| Aluminum | Calcium

39
Q

Humburger effect is otherwise known as

A

chloride shift

40
Q

Which among the following elements is found in maximum percentage in the human body?

Carbon | Hydrogen | Nitrogen | Oxygen

41
Q

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

A

methyl orange

42
Q

Which among the following is pure matter?

Carbon dioxide | Brass | Air | Iron

A

carbon dioxide

43
Q

Which among the following coal contains 90 percent of carbon?

Anthracite | Bitumen | Lignite | Peat

A

anthracite

44
Q

Bauxite is an alloy of which of the following metals?

Aluminum | Silver | Tin | Iron

45
Q

Bauxite is an alloy of which of the following metals?

A

proton and neutron

46
Q

Milk of Magnesia is a suspension of:

A

magnesium hydroxide

47
Q

Quartz is made of:

A

sodium silicate

48
Q

Which of the following is ozone depleting pesticide?

D.D.T. | Benzene | Methyl bromide | Ethylene ozonide

A

methyl bromide

49
Q

Galvanized iron is made by coating iron with:

50
Q

Which is abundant in Gobar gas?

Physical and Chemical Principles (6 decks)

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