Question # 1

Which one Ion is not present in salt.

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Metallic cation

Anion of Base

Anion of acid

None metallic anion

Monosaccharides consist of:

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2 to 6 carbon atoms

3 to 9 carbon atoms

4 to 10 carbon atoms

10 to 15 carbon atoms

The reactions in which products can recombine to form reactants is called.

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Irreversible reactions

Reversible reactions

Direct reactions

Indirect reactions

The percentage of water in human body is about:

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60%

50%

70%

80%

Which salt is used as a table salt?

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NaCl

Na₂CO₃

Na₂SiO₃

NaCl

A reaction between an acid and base produce.

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Salt and water

Salt and gas

Salt and acid

Salt and bases

Hydrogenation of vegetable oil to convert it into banaspatic ghee is carried out in the presence of catalyst:

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Ni-metal

Zn-metal

Na - Metal

Fe2O3

Which disease causes bone and tooth damage?

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Fluorosis

Hepatits

Cholera

Jaundice

The word acid is derived from the.

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Greek word

Latin word

English word

Arabic word.

Acetic acid is used for:

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Elching designs

Clearing metals

Flavouring food

Making explosives

What is the colour of hydrogen iodide in product?

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Purple

Yellow

Blue

Colorless

Alkyl radical is derivative of

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Alkane

Alkene

Alkyne

All

the removal of which ion causes water softening.

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Na⁺

Mg²

Li⁺

K⁺

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