Question # 1

Which group elements has low ionization energies.

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Halogens

Noble gases

Alkaline Earth Metals

Alkali Metals

²³⁸U₉₂ has number of neutrons.

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92

146

238

330

Which one of the suspension.

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Chalk in water

Tootpast

Ink

Blood

Which compound is used a thinner is paint industry?

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H2O

C2H3OH

CH3COOC2H5

CH3COOH

Metals can form ions carrying carges.

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Uni positive

Di positive

Tri postive

All of these

How many blocks are presnt in modern periodic table

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2

3

4

5

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

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4

5

7

6

Which of the following contains oxalic acid

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Orange

Sour Milk

Tomato

Tamarind

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

When old bonds are broken, the energy is.

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Release

Remain same

Consume

None of these

When we mvoe top to bottom in group, ionization energy.

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Increases

No effet

Decreases

None of these

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

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5th

4th

7th

6th

Which metal has the lowest melting point?

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Li

Na

Rb

K

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