The number of neutrons in the nucleus of an atom of mass A and atomic number Z is given by

Question

The number of neutrons in the nucleus of an atom of mass A and atomic number Z is given by

A. A - Z

B. A + Z

C. Z

D. A

Correct Answer :

A. A - Z

Share this question with your friends

Show all General Chemistry MCQ

Comment

Which among the following gases present in the air discolours brass nameplates?

D. Oxygen

Discuss this answer

High temperature thermometers use

Discuss this answer

During fermentation, the by-product is

Discuss this answer

Stainless steel contains steel and

C. nickel

Discuss this answer

Rusting is

Discuss this answer

Water has an unusually high bolling point because

Discuss this answer

Concrete is a mixture of

Discuss this answer

Dry Ice is

Discuss this answer

What is 'oxygen mixture'?

Discuss this answer

The fertilizer which has the largest percentage of nitrogen is

A. urea

Discuss this answer

Compounds of nitrogen with metals are called

Discuss this answer

Deficiency of iron causes

Discuss this answer

The substance preserved under water is

B. sodium

Discuss this answer

Ethyl alcohol is

Discuss this answer

The earliest name given to nitrogen was

B. azote

Discuss this answer

The percentage of silver in German silver is

A. ten

B. twenty

C. zero

D. fifty

Discuss this answer

Which of the following is not an alloy of copper?

A. Bronze

B. Brass

C. Solder

Discuss this answer

Water always contains hydrogen and oxygen in the ratio 1:8 by weight. This is in accordance with the

Discuss this answer

The flux added in the blast furnace is

B. FeO

C. SiO2

D. MgO

Discuss this answer

A non-metal which is a good conductor or heat and electricity is

A. iodine

Discuss this answer

Penicillin was discovered by

Discuss this answer

Which of the following is a mixture?

B. Milk

Discuss this answer

Bordeaux mixture contains

Discuss this answer

Which of the following elements is not required for the healthy growth of plants?

Discuss this answer

Plastics are synthetic

B. fibres

C. resins

D. sugars

Discuss this answer

Which of the following is not a supporter of combustion?

A. Oxygen

B. Air

Discuss this answer

One method by which the components of air can be separated is

Discuss this answer

The most abundant constituent in air is

C. oxygen

Discuss this answer

The formula for cane sugar is

B. C2H5OH

D. C7H8O

Discuss this answer

Tincture iodine is a solution of

Discuss this answer

Answer 1

A. Hydrogen Sulphide

Answer 2

B. Nitrogen

Answer 3

C. Carbon-di-oxide

Answer 4

A. sodium amalgam

Answer 5

B. an alloy of sodium and potassium

Answer 6

C. silver amalgam

Answer 7

D. calcium amalgam

Answer 8

A. ethyl alcohol

Answer 9

B. methyl alcohol

Answer 10

C. carbon monoxide

Answer 11

D. carbon dioxide

Answer 12

A. manganese

Answer 13

B. vanadium

Answer 14

D. chromium

Answer 15

A. an oxidation process

Answer 16

B. a reduction process

Answer 17

C. a physical change

Answer 18

D. an electro-chemical process

Answer 19

A. its molecular weight is low

Answer 20

B. it is denser than ice

Answer 21

C. it is a good solvent for many ionic substances

Answer 22

D. the molecules of water are joined by hydrogen bonds

Answer 23

A. cement an limestone

Answer 24

B. cement and sand

Answer 25

C. cement and gravel

Answer 26

D. cement, sand and gravel

Answer 27

A. solid carbon dioxide

Answer 28

B. liquid oxygen

Answer 29

C. liquid hydrogen

Answer 30

D. liquid. Chlorine

Answer 31

A. A mixture of potassium nitrate and carbon

Answer 32

B. A mixture of ammonium chloride and sodium nitrate

Answer 33

C. A mixture of potassium chlorate and manganese dioxide

Answer 34

D. A mixture of ammonium nitrate and charcoal

Answer 35

B. ammonium nitrate

Answer 36

C. ammonium sulphate

Answer 37

D. calcium cyanamide

Answer 38

A. nitrates

Answer 39

B. nitrites

Answer 40

C. hyponitrates

Answer 41

D. nitrides

Answer 42

A. nervous disorders

Answer 43

B. heart diseases

Answer 44

C. anaemia

Answer 45

D. impairment of vision

Answer 46

A. potassium

Answer 47

C. red phosphorus

Answer 48

D. white phosphorus

Answer 49

A. a deliquescent substance

Answer 50

B. an efflorescent substance

Answer 51

C. a hygroscopic substance

Answer 52

D. a dehydrating substance

Answer 53

A. dephlogisticated air

Answer 54

C. inflammable air

Answer 55

D. marine acid air

Answer 56

D. Gun metal

Answer 57

A. Law of Multiple Proportions

Answer 58

B. Law of Definite Proportions

Answer 59

C. Law of Conservation of Mass

Answer 60

D. Law of Reciprocal Proportions

Answer 61

A. Limestone

Answer 62

B. sulphur

Answer 63

C. graphite

Answer 64

D. phosphorus

Answer 65

A. Alexander Fleming

Answer 66

B. Sir JJ Thomson

Answer 67

C. Dr Nessler

Answer 68

D. Sir John Russel

Answer 69

A. Baking soda

Answer 70

C. Chloroform

Answer 71

D. Copper wire

Answer 72

A. copper sulphate and water

Answer 73

B. copper sulphate, lime and water

Answer 74

C. thio-urea and lime

Answer 75

D. copper sulphate and thio-urea

Answer 76

A. Nitrogen

Answer 77

B. Phosphorus

Answer 78

C. Potassium

Answer 79

D. Mercury

Answer 80

A. rubbers

Answer 81

C. Hydrogen

Answer 82

D. Chlorine

Answer 83

A. shaking with caustic soda solution

Answer 84

B. shaking with water

Answer 85

C. fractional distillation of liquid air

Answer 86

D. passing air over heated magnesium

Answer 87

A. hydrogen

Answer 88

B. nitrogen

Answer 89

D. noble gases

Answer 90

A. C6H12O6

Answer 91

C. C12H22O11

Answer 92

A. iodine in potassium iodide

Answer 93

B. iodine in alcohol

Answer 94

C. iodine in water

Answer 95

D. iodine in carbon disulphide

The number of neutrons in the nucleus of an atom of mass A and atomic number Z is given by

Correct Answer :

Show all General Chemistry MCQ

Related Questions

Which among the following gases present in the air discolours brass nameplates?

High temperature thermometers use

During fermentation, the by-product is

Stainless steel contains steel and

Rusting is

Water has an unusually high bolling point because

Concrete is a mixture of

Dry Ice is

What is 'oxygen mixture'?

The fertilizer which has the largest percentage of nitrogen is

Compounds of nitrogen with metals are called

Deficiency of iron causes

The substance preserved under water is

Ethyl alcohol is

The earliest name given to nitrogen was

The percentage of silver in German silver is

Which of the following is not an alloy of copper?

Water always contains hydrogen and oxygen in the ratio 1:8 by weight. This is in accordance with the

The flux added in the blast furnace is

A non-metal which is a good conductor or heat and electricity is

Penicillin was discovered by

Which of the following is a mixture?

Bordeaux mixture contains

Which of the following elements is not required for the healthy growth of plants?

Plastics are synthetic

Which of the following is not a supporter of combustion?

One method by which the components of air can be separated is

The most abundant constituent in air is

The formula for cane sugar is

Tincture iodine is a solution of

Also checkout