Question # 1

Sodium - potassium alloy is used in nuclear reactor as a:

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catalyst

coolant

reactant

absorber

L shell can accommodate ________________ electrons.

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2

8

18

32

Suspension's solute particles ____________ at bottom.

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Dissolves

Settle

Both

Nil

The component of solution in larger amounts is ____________

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Solute

Solvent

a & b

Nil

The cathode of Daniel cell is made up of

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Zn

Cu

AI

C

"Atoms" means _________

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Divisible

Indivisible

Break

Nil

The boiling point of H2O is:

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100

12

1.105

9

Sodium has ________________ no. of protons.

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11

12

13

14

Bronze (alloy) is a ____________

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Slolution

Mixture

a & b

Nil

Electron ________________ energy when they jump from low to higher level.

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Absorb

Radiate

Nothing

Nil

Cu + 2AgNO3 -------> Cu(NO3) +2Ag. In this reaction reducing agent is:

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Cu

AgNO3

Cu(NO3)2

Ag

The mathematical formula of Charle's law is:

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PV = k

V/T = k

P = VT

T/V = k

_________ elements naturally occurring.

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92

118

93

117

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