Question # 1

Covalent compounds are soluble in

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Polar solvents

Non-polar solvents

Concentrated acids

All solvents

If N_A is Avogadro's number then number of valence electrons in 4.2 g of nitride ions N^3-is

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2.4 N_A

4.2 N_A

1.6 N_A

3.2 N_A

Bragg's law is given by equation

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n λ = 2 θ sin θ

n λ = 2 d sin θ

2nλ = d sin θ

nλ = 1/2 d sin θ

Which one is the property of an ideal solvent

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Should be expensive

It should react chemically with the solute

Impurities should crystallize along with the solute

Should be safe to use

Which metal is protected by a layer of its own oxide?

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AI

Ag

Au

Fe

Which of the following is not present in RNA?

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Uracil

Thymine

Ribose

Phosphate

The unit of rate constant for a zero order reaction is

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Liter sec^-1

Liter mol^-1sec^-1

Mol liter^-1sec^-1

Mol sec^-1

When quantity of electricity passed is one faraday then the mass deposited at the electrode is equal to

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One gm. atomic weight

One gm. Equivalent weight

Electrochemical equivalent

None of the above

The following has zero valency

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Na

Be

AI

Kr

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NAT I Medical Chemistry MCQs With Answers

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