Question # 1

Enzymes are proteins which have the following properties except.

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They catalyze reaction

They are highly non-spcific

They are highly efficient

They are pro

Atmosphere is divided into;

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3 regions

4 regions

5 regions

6 regions

General formula of alkynes is:

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C_nH_n

C_nH_2n

C_nH_2n+2

C_nH_2n-2

The pH of water containing CO₂ is

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4-6

5.6-6

6-7

7-8

Almost all aircrafts fly in:

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troposphere

mesosphere

stratosphere

themosphere

Concentration of the copper ore is carried out by:

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Calcinations

Roasting

Forth flotation

Distillation

Which acid is used for etching glass?

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HF

HCl

HBr

HI

Uric Acid is present in

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Apple

Fats

Urine

Grapes

Carbon Tetra chloride is used in .

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Fertilizer

Dry cleaning

Metallurgy

Anesthesia

The % age of carbon is lignite is

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60

70

80

90

Which one is the simplest sugar which can not be hydrolyzed?

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Glucose

Sucrose

Starch

Cellulose

Natural gas is 85% methane, It is used to make the follwing except.

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Carbon black

Ethane

Propane

Both b and c

Which one Ion is not present in salt.

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Metallic cation

Anion of Base

Anion of acid

None metallic anion

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