Question # 1

The solubility of which salt decreases with the increase of temperture.

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KNO3

Li2SO4

KCl

NaNO3

Number of moels in 29.25 g NaCl is.

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0.50

0.25

0.21

0.75

During the formation of ionic bond heat is.

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Remains same

Absorbed

Released

Both a and b

Atomic number is represented by

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P

A

At

Z

Identify the covalent compund

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NaCl

H₂O

KF

MgO

Whcih is true about the equilibrium state?

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The forard reaction stops

Both forward and reverse reactions stop

Both foward and reverse reactions continue at the same rate

The reverse reaction stops

17th Group of elements contain electrons in their outer most shell

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4

5

7

6

Malleability is the property by virtue of which a metal can be drawn into.

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Rods

Plates

Sheets

Wires

Rutherford used a gold foil in his experiment, which had a tickness of

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0,0002 cm

0,0001 cm

0.001 cm

0.00004cm

Carbon -14 is used for the

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Growth of bones

Diagonosis of goiter

Age determination of old objects

All of these

The unit of ionization energy is

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nm and pm

kJ mol-1

Pascal

Newton

The characteristics of reversible reactions are the following except.

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Product nver recombine to form reactants

They never complete

They have a double arrow between reactants and products

The proceed in both ways

Sodium metal has electrons

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10

11

12

14

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