Question # 1

How many subshells are there in M shell?

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2

4

3

5

An Inorganic chemistry places one mle of PCl5 in container A and one mole of each Cl2 and PCl3 in container B. Both the containers were sealed and heated to the same temperture to reach the stte of equilibrium Guess about the composition of mixtures in both the containers.

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Both the containers wil have zero concentration of its reactants.

Both the containers wil hae the same composition of mixtures

Container A will have more concentraion of PCl3 than B.

Container A will have less concentraion of PCl3 than B.

Carbon -14 is used for the

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Growth of bones

Diagonosis of goiter

Age determination of old objects

All of these

Alkalis react with ammonium salts to librate.

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CO2

SO2

H2

NH3

Actinide series starts after the element

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Actinium

Lanthanum

Osmum

Silver

Numbr of hydrogen atoms present in 18 g of water.

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2 x NA

N_A

3 x N_A

1/2 N_A

What information was obtained fom discharge tube expriments?

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Electrons and protons were discovered

Structur eof atom was discovered

Neutrons and protons were discovered

Presence of nucleus in an atom was discovered

Actinidws belong to period.

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4th

5th

6th

7th

Silicon belongs to Grou IVA . It has ....electons in the valence shell

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2

6

3

4

--------------- acts a catalyst promoting the breakdown of ozone.

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I2

Br2

Cl2

None

A compound with chemicla formula Na₂CX₃ has formula mass 106 ami. Atomicmass of the elemetn X is.

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16

23

12

106

Whic period of the moden periodic table is condidered as incommplete period.

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5th

4th

7th

6th

Which ionic compound has the highest melting point.

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RbCl

KCl

LiCl

NaCl

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