Question # 1

Which of the following mineral does not contain AI?

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Cryolite

Mica

Feldspar

Fluorspar

Which of the following belongs to the halogen family?

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Francium

Polonium

Radium

Astatine

Which of the following is a molecular disease?

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Allergy

Cancer

German measles

Sickle cell anemia

Enzymes are

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Proteins

Mineral

Oils

Fatty acids

The principle constituent of pyrex glass is

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Zn

B

Pb

CI

Which of the following metal exhibits more than one oxidation?

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Na

Mg

Fe

AI

The symbol of the element whose atoms have the outer most electronic configuration 2s² 2p³ is

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N

Li

P

Na

Which species represents the electrophile in aromatic nitrotaion?

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NO^-₂

+

NO₂

NO2

NO^-₃

Cannizzaro reaction is not given by

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Trimethyl acetaldehyde

Acetaldehyde

Benzaldehyde

Formaldehyde

Bromine is obtained on a commercial scale from

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Caliche

Carnallite

Common satl

Cryolite

Gooch crucible is used for the filtration of precipitates having

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High solubility

High concentration

High ignition temperature

Low temperature

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NAT I Engineering Chemistry MCQs With Answers

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