Question # 1

Albumin is

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Insoluble in water

Heat coagulable protein

A plant protein

A protein of low biological value

Why is CO called as pollutant? reason is:

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It combines with oxygen

It inactivates glycoblysis

It combines with hemoglobin

Inactivates nerves

Glass is a

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Micro-crystalline solid

Super-cooled liquid

Gel

Polymeric mixture

The hexagonal closed packing is associated with

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Ag, Cu, Au

Zn, Cd, Hg

Li, Na, K

NaCl, KBr

Which one is very weak acid

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HF

HCI

H2CO3

H2O

A chemist says that glass must be a super cooled liquid. the reason that he might have in his mind is that glass has:

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Definite shape

Definite volume

Crystalline structure

No crystalline structure

Plastic are pollution problem because many plastics

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Are made from petroleum

Are very inflammable

Burn to produce toxic fumes

Decompose to produce toxic product

Ice floats on water because

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the hydrogen bonding in ice is stronger than that of in water

empty spaces are left in ice

ice has two-dimensional structure

the bond length of the oxygen and hydrogen bond is different in water and ice

Potable water is considered to be:

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safe for human consumption

the ground water

the Surface water

now water is due to the salt of:

Rusting of iron is the example of

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Fast

Slow

moderate

depends upon conditions

In a crystal the atoms are locate at the position of:

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infinite potential energy

minimum potential energy

Zero potential energy

maximum potential

In the ground state of an atom, the electron is present

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In the nucleus

In the second shell

Nearest to the nucleus

Farthest from the nucleus

Photochemical smog is caused by

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CO

CO₂

O₃

NO₂

Benzene hexachloride is used as

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Dye

Antimaterial drug

Antibiotic

Insecticide

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Increase in concentration of 1

Decrease in concentration of I₂

Increase in temperature

Increase in total pressure

Acetone is oxidized with

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Tollen's reagent

Fehling solution

Acidic dichromate solution

Benedicts solution

Carboxylic acids are more acidic than pehnol and alcohol because of

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Intermolecular hydrogen bonding

Formation of dimmers

Highly acidic hydrogen

Resonance stabilization of their conjugate base

Stainless steel contains ion and carbon along with

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Ni and Cr

Cr and Co

Co and Mn

Mn and Ni

Alkanes normally have ______ hybridization

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Sp

Sp²

Sp³

d sp³

The rate of a chemical reaction is directly;y proportional to product of molar concentration of reaction substance it is called :

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Low of conservation of energy.

Law of mass action.

Rate law .

Active mass rule.

Without proper suction,filtration is:

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Rapid process

Fague process

Slow process

Useless process

Hydrolytic reaction of fats by causic soda is known as

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Acetylation

Carboxylation

Esterification

Saponification

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