Question # 1

Structure of carbonyl is

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Tetrahedral

Linear

Octahederal

Trigonal planar

Which one of the following is inorganic polymer

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Graphite

Rubber

DNA

Protein

Which of the following acid can be used as a catalyst in Friedel Craft's reactions

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AlCl₃

HNO₃

BeCl₂

NaCl

The most metallic elements from the following is

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Arsenic

Oxygen

Antimony

Bismuth

Which one is cyclic amino acid

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Glycine

Alanine

Proline

Aspartic acid

Aluminium is used for making petrol and milk storage tanks because it is

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Conductor

Non magnetic

Excellent reflected

Corrosion resistant

Majority of the elements of the periodic table are.

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Semi metals

Non metals

Metals

Noble metals

Which one of the following will be required to form ethene from ethyl chloride.

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Alcoholic KOH

Aqueous KOH

Alkaline KMnO4

Bromine

Which elements are needed for healthy growth of plants

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N,S,P

N,Ca,P

N,P,K

N,K,C

Chlorine heptoxide (CI₂O₇) reacts with water to form

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Hypochlorous acid

Chloric acid

Perchloric acid

Chlorine and oxygen

In which form, glucose is stored in the liver

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Lactic acid

Maltose

Ribose

Glycogen

Which substance is used to lower the melting point of NaCl in Down's cell

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CaCO3

CaCl2

MgSO4

AlCl3

Which one of the following metal cannot evolve hydrogen from acetic acid.

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Sodium

Potassium

Magnesium

Zinc

When Cu reacts with conc. HNO3 , which one of the following gases is evolved

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N2O

NO

NO2

N2O5

Which one of the following products is not formed when acetic acid reacts with PCl5

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C2H5Cl

HCl

POCl3

CH3COCl

Which one is a disaccharide

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Glucose

Sucrose

Fructose

Cellulose

The mean residence time of methane in atmosphere in

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1-2 years

3-4 years

3-5 years

3-7 years

In which process, alkyl halide is not produced.

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Reaction of alcohol with halogen acid

Reaction of Grignard reagent with water

Reaction of alcohol with phosphorous pentachloride

Action of alkene on halogen acid

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