Question # 1

Natural frertilizer provides phosphorus to plants in the form of P₂O₅

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1.2 kg

2.2 kg

3.2 kg

4 kg

Which of the following is not present in RNA?

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Uracil

Thymine

Ribose

Phosphate

Which of the following elements is most electronegative?

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Oxygen

Chlorine

Nitrogen

Fluorine

The following has zero valency

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Na

Be

AI

Kr

The credit of discovering neutron goes to

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Rutherford

Langmuir

Chadwick

Austen

The essential component of organic compound is

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O

C

P

N

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

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Tetraethyl lead

Lead tetrachloride

Lead acetate

Ethyl acetate

Saturated solution of NaCI on heating becomes

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Super saturated

Unsaturated

Remains saturated

None

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