Question # 1

Sodium carbonate is manufactured by.

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Haber's process

Ostwald's process

Solvay's process

All

General formula of alcohols is:

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RCHO

ROH

O= R - C -OH

O = R - C- R

General formula of alkenes.

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C_n H_2n-2

C_nH_2n

C_nH_2n+2

C_nH_2n-1

Photosynthesis process produce.

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Carbondioxide

Glucose and oxygen

Carbon di oxide

glucose and carbondoxide

A reaction between an acid and base produce.

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Salt and water

Salt and gas

Salt and acid

Salt and bases

Which contains sufficient amount of metal?

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Mineral

Ores

Rocks

Soil

Ultraviolet radiations can causes.

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Hepatitis

Asthma

Skin cancer

Night blindness

Substitution reaction is the characteristics of.

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Alkanes

Alkenes

Alkynes

None of these

The nitrogen present in urea is used by plants to synthesize.

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Sugar

Proteins

Fats

DNA

Glucose and fructose are;

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trioses

tetroses

pentoses

hexoses

Fertilizers are used to make up the deficiency of;

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oxygen and carbon

iron and magnesium

nitrogen and phosphorus

hydrogen and calcium

Runcid butter has

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Foul smell

Rotten egg smell

Pungent smell

No smell

According to Lewis concept, acid is a substance which.

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Can donate protons

Can donate an electron pair

Can accept protone

Can accept electron pair

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