Question # 1

Whcih one of the following wil show negligible effect of termperture on its solubility.

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KCl

KNO3

NaCl

NaNO3

A covalent bond formed by the mutual sharing of two pairs of electrons between bonded atoms is called.

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Signle covalent bond

Double covalent bond

Triple covalent bond

Polar covalent bond

According to Rutherford's atomic theory, atom should produce.

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Line spectrum

Continuous spectrum

Both a and b

None of these

Which liquid among the followingis a colloidal solution.

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Milk

Slaked lime used for white wash

Vinegar solution

Mixtur eof AgCl in water

Whcih period of the modern periodic table is considered as incomplete period.

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4th

5th

6th

7th

Identify the compound whcihis not soluble in water

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KBr

MgCl2

C6H6

NaCl

All Acids turn blue litmus.

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Pink

White

Colourless

Red

/which of the followign elements is presnt in group IA.

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Lithium

Hydrogen

Sodium

All of these

The compund formed by oppoite charges are known as.

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Metallic solids

Ionic compounds

Non-polar Covalent compound

None of the above

The amoutn of energy given out when an electron is added to an eatom is called.

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Electron affinity

Lattice energy

Ionization energy

Electronegativity

No reaction occurs if the energy of reacting particles.......activation energy.

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Lower than

Greather than

Nearest to

Equal to

All transition elements belong to

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s and p block

d- block

f-block

d and f block

¹³ C and ¹⁴ C are both present in nature.

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0,1 %

1.1 %

0.9 %

1.5 %

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