Question # 1

Word "acid" derived from:

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Urdu

English

Latin

Greek

Photosynthesis process produce.

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Carbondioxide

Glucose and oxygen

Carbon di oxide

glucose and carbondoxide

Rapid growth of algae in water bodies in because of detergent having.

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Carbonat salt

Sulphonic acid

Sulphat salt

Phosphate salt

Which one of these protects us against the disease;

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Carbohydrates

Lipids

Proteins

all of these

The solid particle deposit on the filter paper during filtratin is called.

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Precipitates

Residue

Crystals

All of them

Acids have taste

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Bitter

Seetish

Sour

Saltish

Which gas is used to destroy harmful bacteria in water?

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Iodine

Chlorine

Flourine

Bromine

Molecular formula of stearic acid is.

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C₁₅H₃₁ COOH

C₁₂H₁₅COOH

C₁₅H₃₀COOH

C₁₇H₃₄COOH

General formula of alcohols is:

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RCHO

ROH

O= R - C -OH

O = R - C- R

The word acid is derived from the.

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Greek word

Latin word

English word

Arabic word.

Which one is not the fraction of residual oil?

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Paraffin wax

Asphalt

Fuel oil

Coke

Who proved that the presence of hydrogen as the main constituent of all acids.

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Lavoisier

Humphrey Davy

Dalton

Arrhenius

Froth flotation process is used to concentrate the ore on:

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Density basis

Concentration basis

Wetting basis

Magnetic basis

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