Question # 1

Uni of electron affinity is.

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k J mol-1

k jmol

pm

Newton

Whcih term is the same for one mole of oxgen and one mole of water.

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atoms

mass

Molecules

Volume

How many moles are there in 25 g of H₂SO₄?

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0.765 Moles

0.255 moles

0.4 moles

0.51 moles

How many electrons can nitrogen accept in its outermost shell.

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2

3

4

5

The study of theinteraction between drugs and biological targets, as wellas the development of new medicinal agents.

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Inorganic Chemistry

Organic chemistry

Medicinal Chemistry

Environmental chemistry

The solubility of which salt decreases with the increase of temperture.

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KNO3

Li2SO4

KCl

NaNO3

At what temperature , rate of ammonia formation and decomposition is the highest.

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200 ^oC

300^oC

400 ^oC

500 ^oC

When an electronegative element combines with electrpositive element, the type of bonding. is.

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Covalent

Polar Covalent

Ionic

Coorinae Covalent

The colour of hydrated copper (II) sulphate solid is.

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Black

Pink

White

Blue

Who performed fist experiment to split atom

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Bohr

Newton

Rutherford

Soddy

A covalent bond formed by the mutual sharing of two pairs of electrons between bonded atoms is called.

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Signle covalent bond

Double covalent bond

Triple covalent bond

Polar covalent bond

Proton are feflected toward plate.

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Positive

Negative

Both a and b

None of these

A reaction between an acid and a base produces

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Salt and an acid

Sald and base

Salt and water

Salt and gas

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