Question # 1

Which protect our muscles from cramping?

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Carbohydrats

Vitamins

Lipids

Proteins

The strong heating of coal in retoris in the absence of air is called.

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Fractional distillation

Sublimation

Roasting

Destructive distillation

Which gas protects the Earth's surface from ultraviolet radiations?

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CO₂

CO

N₂

O₃

Formula of soda ash is.

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Na₂CO₃

NaHCO₃

Na₂SO₄

Na₃PO₄

On which bases froth floatation process take place?

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Density bases

Concentration basis

Watting basis

None of these

Low sugar level in human body result in.

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Hyperglycemia

Hypoglycemia

Anemia

All of them

Latin word 'Acidus' means:

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sweet

salty

sour

bitter

Ozone is formed in:

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Troposphere

Stratosphere

Mesosphere

Thermosphere

The unit of molar concentration is:

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moldm^-3

moldm⁺³

molcm^-3

molcm⁺³

The order of reactivity of hydrogen halides with alkenes is.

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HI>HBr

HBr>HI

HCl>HBr

HBr < HCl

The % age of nitrogen and oxygen in our atmosphere is:

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80

90

95

99

Oxidation of Ethene with KMnO₄ produces.

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Oxalic acid

Glyoxal

Ethene Glycol

Propene glycol

Which one of the following does ot contain protein

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Pulses

Potatoes

Beans

eggs

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