Question # 1

Which of the following is not a charbohydrate

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Nuclic acid

Starch

Glycoyen

Cellulose

Tertiary alcohols have alpha bydrogens

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1

Zero

2

3

Elevated concentration of ______________ is harmful for fish as it clog the gills causing suffocation

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AI

Hg

As

Cr(vi)

Acetaldehyde cyanohydrin upon hydrolysis prodnces

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Tartaric acid

Malonic acid

Formic acid

Lactic acid

The smallest unit of a crystal that shows all the characteristic properties of its pattern is called

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cell

electrolyte

unit cell

crystal

Which is an intermediate in Svl

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Ethoxide ion

Alkene

Alkyl halide

Carbocation

The addition of HCI to ethene gives?

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Chloroethane

1,2-dichloroethane

1.1-dichloroethane

2-chloroethane

The solid particles posses only ______ kinetic energy

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Translational

Rotational

Viberational

Circular

One kilo calorie is equal to

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4.184J

1000J

4184J

1kJ

Only those metals can replace Hydrogen from dilute acids, which have

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High negative reduction potential

Low negative reduction potential

High positive reduction potential

low positive reduction potential

Which one of the following gases has lowest density at room temperature:

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NH₃

Ne

N₂

CO

Sodium hexametaphophate is known as

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Calgon

Permutite

Natalite

Nitrolim

An orbital can accommodate maximum two electrons with opposite spins according to

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Heisenberg's principle

Aufbau principle

Hund's srule

Pauli exclusion principle

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Electrophilic substitution

Free radical reduction

Isomerisation

Nucleophilic substitution

The fiber which is made from acrylonitrile as monomer:

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PVC

Rayon Fiber

Acrylic fiber

Polyester fiber

NO and NO₂gases in atmosphere are represented by

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NO

NO₄

NO_x

N_xO_y

The substance added in the paints for improving the mechanical properties is called

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Pigment

Filter

Stabilizer

Binder

If half life period of a reaction is independent of the concentration of the reactants, then the reaction is

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Zero order

First order

Second order

Order is in fraction

The general formula of saturated alicyclic hydrocarbons is:

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C_nH_n

C_nH_2n

C_nH_2n+2

C_nH_2n-1

Which of the hydrogen halides has the highest percentage of character?

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HCl

HBr

HF

Hl

The strongest acid among the following aromatic compound is

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Ortho-nitrophenol

Para-chlorophenol

Para-nitrophenol

Meta-nitrophenol

When metallic sodium in ether is heated with ethyl chloride, which alkane is formed

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Propane

Ethane

Iso-butane

N-butane

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