Question # 2

EN

Isotopes are sister atoms of same elements with same chemical properties but different in

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Atomic Number -

Atomic Volume -

Atomic weight -

Atomic structure -

Question # 3

EN

An ordinary microscope can measure the size of object up to:

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400nm -

200nm -

100nm -

500nm -

Question # 4

EN

In mass spectrometer, detector or collector measures the

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Mass of isotopes -

Percentages of isotopes -

Relative abundane of isotopes -

Mass numbers of isotopes -

Question # 5

EN

Nickels has isotopes

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3 -

5 -

6 -

11 -

Question # 6

EN

1A.M.U is equal

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1.661 × 10power17 -

1.661 × 10power24 -

1.661 × 10power34 -

1.661 × 10power36 -

Question # 7

EN

Out of 280 isotopes which occurs in nature,radioactive isotopes are:

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116 -

126 -

30 -

40 -

Question # 8

EN

How many isotopes are present in palladium

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Four -

Five -

Six -

Seven -

Question # 9

EN

Atom of which of the following element has independent existence?

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Nitrogen -

Oxygen -

Krypton -

Fluorine -

Question # 10

EN

Height of peak in mass spectrum shows

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Number of isotopes -

Mass number -

Relative Abundance -

Number of protons -

Question # 11

EN

The number of molecules in one gram molecules of ${CO}_{2}$

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6.02x1023 -

6.02x1022 -

6.27x1027 -

6.02x1024 -

Question # 12

EN

Who determined the atomic mass?

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Maxwell -

J Berzilus -

John Delton -

Newton -

Question # 13

EN

The number of isotopes CD is

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6 -

2 -

9 -

11 -

Question # 14

EN

Silver has isotopes

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9 -

16 -

17 -

18 -

Question # 15

EN

The mass of oxygen atom is

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2.657x10-23g -

2.657x1023g -

16g -

32g -

Question # 16

EN

How many times a haemoglobin molecule heavier than hydrogen atom

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38000 TIMES -

58000TIMES -

68000TIMES -

88000TIMES -

Question # 17

EN

The number of isotopes Tin are :

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6 -

9 -

11 -

Question # 18

EN

Each molecule of haemoglobin is made up of nearly

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11000ATOMS -

6600ATOMS -

10000ATOMS -

6800ATOMS -

Question # 19

EN

Positive ion are called:

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Cations -

Anions -

Molecule -

Hydrated ions -

Question # 20

EN

Electrometer are also called

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Voltmeter -

Avometer -

Ion collector -

Galvanometer -

Subject chemistry

Question # 1

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Question # 2

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Question # 3

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Question # 4

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Question # 5

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Question # 6

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Question # 7

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Question # 8

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Question # 9

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Question # 10

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Question # 11

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Question # 12

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Question # 13

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Question # 14

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Question # 15

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Question # 16

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Question # 17

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Question # 18

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Question # 19

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Question # 20

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