Question # 1

Which particle is present in differente number in the isotopes.

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Proton

Electron

Neutron

Both neutron and electron

Whcih subshells are present in L - shell?

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S and P

Only s -sub shell

Only p - sub shell

Sub shell

Number of isotopes of hydrogen is

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2

5

4

3

Which is strongest oxidizing agent.

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Cholorine

Iodine

Fluorine

Bromine

How many lone pairs are present on nitogenin ammonia molecule.

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One

Two

Three

Four

²³⁸U₉₂ has number of neutrons.

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92

146

238

330

A complete reaction is in which

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Only 10% reactants covert into products

All the reactants covrt into products

All the reactants do no covrt into products

Half reactants covert into produts

Every atom has a natural tendency to accommodate electrons in its valence shell

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2 or 6

2 or 4

2 or 8

2 or 10

40 g of H₃PO₄ contains numebr of moles

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0.58 g

4.8 g

5.8 g

0.408 g

The elements of group 3 to 12 are clled.

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Normal elements

Halogens

Noble gases

Transition elements

The simplist form of matter

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Liquid

Solid

Gas

Both b and c

Metals can form ions carrying carges.

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Uni positive

Di positive

Tri postive

All of these

Which of the following bond s is expected to b the weakest.

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Cl-Cl^-

C-C

F-F

O -O

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