Question # 1

The amount of free fatty acid in fats and oil is determined by

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Iodine number

Acid number

Saponification number

Gold number

Which one of the following compounds will decolorized both acidified KMnO4 and aqueous bromine.

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Benzene

Ethane

Ethene

Methane

Which one of the following gases is used welding purpose usualy.

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Methane

Ethane

Ethene

Acetylene

Acetone reacts with HCN to form cyanohydrin it is an example of

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Electrophilic addition

Electrophilic substitution

Nucleophilic addition

Nucleophilic subtitution

Ammonium nitrate fertilizers is not used for which crop

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Cotton

Wheat

Sugar cane

Paddy rice

Which one of the following group of Periodic table called chalcogen family.

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Group III A

Group VA

Group VI A

Group VII A

Which one of the following gases is used for artificial ripening of fruits

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Ethene

Ethyne

Methane

Propane

The oxides of beryllium are

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Basicity

Rancidity

Amphoteric

none of all

The fiber which is made from acrylonitrile as monomer

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PVC

Polyester fiber

Rayon fiber

Acrylic fiber

Colour of which halogen is not correctly related.

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F2 --- colourless gas

Cl2---- greenish yellow gas

Br2----- Reddish brown liquid

I2-------- grayish Black solid

Structure of carbonyl is

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Tetrahedral

Linear

Octahederal

Trigonal planar

Pulp is washed to remove lignin from it. Due to the presence of lignin in pulp paper becomes.

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Soft

Brittle

Acidic

Colourless

Which element reacts with alkali and H2 gas is produced.

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Be

Mg

Ca

Sr

How much does of methanol can cause death

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10-15 ml

15-20 ml

100- 250 ml

has no effect

Which one is metaphosphoric acid

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HPO3

H3PO3

H3PO4

H4P2O7

The reaction between concentrated H2SO4 and glucose give carbon and water. In this reaction H2SO4 acts as.

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An acid

An oxidising agent

Dehydrating agent

A reducing agent

Bakelite is obtained from phenol by reacting with

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Acetal

Ethanal

Formaldehyde

Methanol

In ethene molecule how many carbon orbitals are equivalent and degenerate in nature.

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3

4

5

6

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