Question # 1

In the body carbohydrates are broken down into:

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glucose

fatty acids

amino acids

nucleic acid

When a compressed gas is allowed to pass through a nozzle of a jet into a region of low pressure, it produces

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cooling

vaporization

fusion

expansion

Ecology is a science of environment and deals specially with

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stratosphere

biosphere

lithosphere

hydrosphere

Iodine value of an oil or fat may be defined as

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the number of grams of iodine taken up by 1 g of the oil or fat

the number of grams if iodine taken by 10 g of the oil or fat

the number of grams of iodine taken by 100 g of the oil or fat

none of the above

Out of total amount of water available for human use is

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0.30%

0.2%

40%

50%

The substance upon which an enzyme acts is known as its

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domain

field

substrate

reactant

Which behaves as insulator for animals body?

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Carbohydrates

Proteins

Fats

Skin

In a crystal a ≠ b ≠ c,a = y 90° and β ≠ 90° it is

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Monoclinic

Rhombic

Trigonal

Tetragonal

The conversion of tertiary alcohols into alkenes in the presence of K2Cr2O7 + H2SO4 is

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Addition reaction

C-H bond cleavage

Elimination reaction

Combustion reaction

Asbestos is commonly used in making

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wall board

black board

soft board

hard board

If 250 cm³of hydrogen gas is cooled from 127°C to -73°C at constant pressure then new volume of gas is ______ dm³

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0.25

0.375

0.125

0.0625

X-ray work has shown that the diameters of atom are of the order of

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8 x 10^-10m

2 x 10^-10m

8 x 10^-8m

2 x 10^-8m

Which of the following is an example of ketohexose?

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Mannose

Galactose

Maltose

Fructose

Splitting of spectral lines of the hydrogen atom under the influence or magnetic field is called

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Stark effect

Zeeman effect

Compton effect

Photoelectric effect

Which one of the following is a product of the reaction between C₆H₅CH₂OH and CH₃COCI

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C₆H₅OCOCH₃

C₆H₅CH₂CI

C₆H₅CH₂OCOCH₃

C₆H₅CH₂COCI

Ecosystem is a smaller unit of

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Hydrosphere

Lithosphere

Biosphere

Atmosphere

Without proper suction filtration is

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Rapid process.

Fague process.

Slow process.

Useless process.

Which one of the followings is a heterocyclic compound

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Cyclohexanol

Phenol

Pyridine

Anthracene

Phenol was discovered by:

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Hofmann

Runge

Henderson

Bakelite

Content is a combination of mainly:

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Calcarious

Argillaceous

Calcarious and argillaceous

Al₂O₃

Sulphuric acid generates nitronium ion by reacting with

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Nitric acid

Nitrogen gas

Nitrous acid

Potassium nitrate

BOD is the oxygen demand with in days(s):

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Four

Two

Three

Five

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