Question # 1

Which one is a solution?

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Carbonated drinks

Sugar

Benzene

Vineger

It is a strong electrolyte

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H2O

CH3COOH

NaOH

C6H6

____________ is prevented by Metallic coating.

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NaCl

Rust

All

None of these

The absolute zero means:

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273.15 °C

-273.15 °C

0 °C

-373.15 °C

1 torr = ?

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1 mm of Hg

1 atm

760 mm of Hg

1 pascal

The no.of electrons in the valence shell of noble gases is

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1

6

7

8

Which one of the following is liquid in solid solution?

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sugar in water

butter

opal

fog

The valency of nitrogen is

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1

2

3

4

Gases have fixed ____________

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Shape

Volume

Area

Nil

T (K) =

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(T) °C + 273

(T) °C -273

(T) °C + 373

(T) °C -373

The 2nd and third periods are called

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short period

Normal period

Long period

Very long period

Which one of the following is the most penetrating?

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protons

electrons

neutrons

alpha paticles

Atoms form chemical bonds to attain the electronic configuration of

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Halogens

Noble gases

Alkali metals

Alkaline earthmetals

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