Question # 1

The ratio of the ionization energy of H and Be³⁺ is

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1 : 1

1 : 3

1 : 9

1 : 16

Gooch crucible used to filter the solution of

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H₂SO₄

HCI

KMnO₄

Both B & C

The spectrum of helium is expected to be similar to that of

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H

Li⁺

Na

He⁺

Which one of the following compounds does not exist?

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NCI₅

AsF₅

SbCI₅

PF₅

Setting of plaster of paris involves

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Oxidation with atmospheric oxygen

Combination with atmosphere CO₂

Dehydration

Hydration to yield another hydrate.

Which of the following transition metal ions will have definite value of magnetic moment?

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Sc³⁺

Ti³⁺

Cu⁺

Zn²⁺

Sodium metal cannot be stored under

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Benzene

Kerosene oil

Alcohol

Toluene

Which has maximum protein content?

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Ground nut

Cow milk

Egg

Wheat

For the reaction

2A(g) + B(g) 3C(g) + D(g)

two moles each of A and B were taken into a flask The following must always be true when the system attained equilibrium

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[A] = [B]

[A] < [B]

[B] = [C]

[A] > [B]

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