Question # 1

Which fiber contains 85% acrylonitrile by weght?

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azlon fiber

saran fiber

acrylic fiber

rayon fiber

Benedict solution gives a positive test with

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Glucose

Fructose

Sucrose

Starch

Which one of the following is more acidic

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Phenol

Carboxylic acid

Alcohols

Amines

The value of oxidation number of chlorine in HCIOs is

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+7

+5

-1

+3

Amino acid produce α-hydroxy carboxylic acid when treated with

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KNO₃/HBr

Zn/HCI

NaNO₂/HCI

Pd/BaSO₄

The gases law describe the ______ Behaviour of gases

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Variable

Constant

Uniform

Best

Factors affected denaturation of proteins:

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Change in temp and pH

Strong reducing agent

Strong oxidizing agent

All of these

2-propanol on Oxidation gives

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Aldehyde

Carboxylic Acid

Ketone

Alcohol

The film forming components of paints are

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resins

thinners

pigments

driers

Equal volumes of ideal gases contain equal number of molecules at:

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Same temperature

Same pressure

Same environmental conditions

Both (A) and (B)

Addition of unsymmetrical reagent to an unsymmetrical alkene is governed by

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Cannizzaro's Reaction

Aldol Condensation

Kirchhoff Rule

Markownikov's Rule

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With H₂/Ni CH₃(CH₂)₅CH₂OH

With H₂/Ni CH₃(CH₂)₅CH₃

With NaBH₄ CH₃(CH₂)₅CH₂OH

With NaBH₄ CH₃(CH₂)₅CHO

d-block elements are also called :

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alkali metal

Alkaline earth metals

Transition elements

Electron deficient elements

Monosaccharides belong to the group

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Lipids

Fats

Proteins

Carbohydrates

Which of the element is not alkali metal

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Lithium

Rubidium

Francium

Magnesium

Which is not true about acetophenone?

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Reacts to form 2,4-dintrophenyl hydrazine

Reacts with Tollen's reagent to form silver mirror

Reacts with I₂/NaOH to form iodoform

On oxidation with alkaline KMnO₄followed by hydrolysis gives benzoic acid

Red P can be obtained form white P by

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Heating it with a catalyst in an inert atmosphere

Distilling it in an inert atmosphere

Dissolving it in CS₂and crysllizing

Melting it ad pouring the liquid into water

d-block elements closely resemble in their physical and chemical properties. Which statement is incorrect

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They show variable valency

Their ions and compounds are coloured

They are good conductors of heat and electricity

Their compounds are diamagnetic

The main source of natural fibre is

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Animal fibres

Vegetables fibres

Mineral fibres

All of the above

The state of hybridization of carbon atom in methane is:

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sp³

sp²

sp

dsp²

Which structure shows a primary alcohol

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Ketones are prepared by the oxidation of

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Primary alcohol

Secondary alcohol

Tertiary alcohol

None of these

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