Question # 1

Which of the following alcohols cannot be produced by treatment of aldehydes or ketones with NaBh₄or LiAH₄?

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1-Propanol

2-Propanol

2-Methyl2-Proponal

Ethanol.

Bell metal is an alloy of

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Cu, Zn and Sn

Cu, Zn and Ni

Cu and Zn

Cu and Sn

Which of the following as a molecular diseaes?

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Allergy

Cancer

German measles

Sickle cell anemia

Red lead is

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PbO

Pb₃O₄

PbO₂

Pb₄O₃

Vital force theory was rejected by

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Berzelius

Kolbe

Wholer

Lavoiser

The pure crystalline substance on being heated gradually first forms turbid liquid at constant temperature and still at higher temperature turbidity completely disapp-ears. The behaviour is a characteristic of substance forming

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Allotropic crystal

Liquid crystals

Isomeric crystals

Isomorphous crystals

Which metal is protected by a layer of its own oxide?

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Al

Ag

Au

Fe

Reaction of acids with alcohols is also known as

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Esterification

Saponification

Alkalization

None

When electrons revolve in stationary orbits,

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There is no change in energy level

They vecome stationary

They are gaining kinetic energy

There is increase in energy

Hydrolytic conversion of sucrose into glucose and fructose is known as

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Induction

Inversion

Insertion

Inhibition

The disaccharide present in milk is

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Sucrose

Maltose

Lactose

Cellobiose

Sodium thisoulphate is used in photography because of its

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Oxidizing behaviour

Reducing behaviour

Complexing behaviour

Photochemical behavior

The isomers due to the unequal distribution of carbon atoms on either side of the functional group belonging to the same homologous series are called

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Functional isomers

Position isomers

Chain isomers

Metamers

The rate at which a substance reacts depends on its

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Atomic weight

Equivalent weight

Molecular weight

Active mass

Leblanc process is employed in the manufacture of

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Baking soda

Washing soda

Potash

Plaster of paris

A cell constant is generally found by measuring the conductivity of aqueous solution of

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BaCl₂

KCl

NaCl

MgCl₂

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