Question # 1

Which one is not a property of electrolytic cell?

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It consists of one complete cell

Anode has +ve charge

It converts electrical energy into chemical one

Anode has -ve charge

____________ is prevented by Metallic coating.

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NaCl

Rust

All

None of these

Diamonds is ____________

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Soft

Hard

Bulky

Nil

Which molecule has single covalent bond?

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O₂

N₂

CI₂

CO₂

A two component solution is called ____________ solutions.

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Binary

Once

Both

None

D-block consists of:

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4th,5th & 6th periods

2nd, 3rd & 4th periods

1st, 2nd, & 3rd periods

"Atoms" means _________

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Divisible

Indivisible

Break

Nil

___________ is a pure substance that can be broken down.

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Matter

Element

Mass

Mixture

Which one metal is least reactive?

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K

Fe

Cu

AI

The property of being polar in nature is called:

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Polarity

Chemistry

Both

Nil

Halogens with metals for

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Ionic bond

Covalent bond

Dative covalent bond

Metallic bond

There are _________ elements found till now .

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120

118

119

117

Which of the following compound is not directional in its bonding?

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CH⁴

KBr

CO²

H₂O

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