Question # 1

Which of the following are mono-saccharides

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Fructose

Sucrose

Stach

Cellulose

When CO2 is made to react with ethyl magnesium iodide, followed by acid hydrolysis, the product formed is.

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Propane

Propanoic acid

Propanal

Propanol

When methane reacts with Cl₂in the presence of diffused light the products obtained are

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Chloroform only

Carbon tetrachloride only

Chloromethane and dichloromethane

Mixture of a, b, c

Majority of the elements of the periodic table are.

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Semi metals

Non metals

Metals

Noble metals

The addition of unsymmetrical reagent to an unsymmetrical alkene is in accordance with the rule

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Hund's rule

Markownikov's rule

Pauli's Exclusion Principle

Aufbau Principle

Oxide of Alkaline earth metal are

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Acid

Basic

Neutral

Amphoteric

Biphenyl is

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Monocyclic aromatic compound

Polyclic aromatic compound

Polycyclic fused ring compound

Alicyclic compound

Which raw material is used for preparation of bleaching powder.

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Cl2 and H2O

Cl2 and Lime

Cl2 and HOCl

HCl and Lime

Which type of coal has greater percentage of carbon.

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Peat

Lignite

Bituminous

Anthracite

Bleaching powder contains available chlorine approximately

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100%

70-80%

35-40%

10-20%

Which chemicals used for detection of amino acids.

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NaOH + I2

Phenyl hydrazine

Ninhydrin

Benedict's solution

Oxides of alkaline earth metal are

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Acidic

Basic

Neutral

Amphoteric

Methyl alcohol can be represented by all of the following words or symbols except.

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CH3OH

Wood spirit

Methanol

Grain alcohol

Cyclic structure of benzene was proposed by

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Dewar

Faraday

Down

Kekule

Which enzyme is not involved in fermentation of starch.

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Diastase

Zymase

Urease

Invertase

The pH of truly acidic rain is

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7-6.8

6.5-6

6-5.6

less than 5

An ester can be prepared by the reaction of.

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Two alcohols

Alcohol and an aldehyde

An alcohol and an organic acid

an acid and a ketone

Which allotrope of phosphorus has layers like graphite.

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white phosphorus

Red phosphorus

Black Phosphorus

Amorphous phosphorus

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