Question # 1

Which one of the following has the lowest boiling point?

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B

AI

Ga

Ti

Hybridization explain the------- of orbitals

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Type of Bonding

Shapes

Shape and Type of bonding

None of above

Ozone is not

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An allotrope

A powerful oxidizing agent

Paramagnetic

A bent molecule

ΔH_{Neutralisation} is always

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Positive

Negative

Zero

Positive or negative

Which of the following is different from the other three oxides?

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MgO

SnO

ZnO

Cr₂O₃

Which of the following substances is used as an antiknock compound?

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Tetraethyl lead

Lead tetrachloride

Lead acetate

Ethyl acetate

AI is more reactive than Fe but AI is less easily corroded than Fe Because

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It is a noble metal

Oxygen forms a protective reaction easily with water

Iron undergoes reaction easily with water

Fe form mono and divalent ions.

Vitamin A is present in

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Liver

Milk

Green vegetables

All

Which quantum number is sufficient to describe the electron is hydrogen atom?

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/

n

m

s

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NAT I Medical Chemistry MCQs With Answers

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