Question # 1

Micronutrients for plant are those which

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Are required in very large amount

Are required in very small amount

Are produced from plants in very small amount

Retard the growth of plants

Which one of the following is inorganic fertilizer.

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Manure

Urea

Ammonium nitrate

All of these

In which process, an amino acid is produced

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Wurtz synthesis

Strecker synthesis

Kolbe synthesis

Cannizzaro reaction

The Milk of magnesia is used for the treatment of

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Basicity

Rancidity

Acidity

Jaundance

Which one of the following methods is used for the preparation of ether.

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Kolbe's reaction

Frankland reaction

Williamson synthesis

Down's process

The anhydride of HCIO₄is

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CIO₃

CIO₂

Cl₂O₅

Cl₂O₇

Aromatic compounds burns with sooty flame because.

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They have high percentage of hydrogen

The have a right structure

The have high percentage of carbon

The resist reaction with air

When ethyl alcohol is heated, with NH3 in presence of ThO2 then

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O-H bond is broken

C-O bond is broken

Ethene is formed

Ethane is formed

Silver mirror test is given by

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Ethers

Ketones

Acids

Aldehydes

----------- compound shows extensive hydrogen bonding with water

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C₂H₆

H₂S

C₂H₅OH

CH₃Cl

For ----------------- Mechanism, the first step involved is the same

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E1 and E2

E2 and S_N2

S_N1 and S_N2

E1 and S_N1

Which one of the following species is not an electrophile.

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HN3

Br

H+

BF3

Which one of the following is not an alkali metal

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Francium

Caesuym

Rubidium

Radium

The percentage of carbon in different types of iron products is in the order of

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cast iron > wrought iron > steel

wrought iron > steel > cast iron

cast iron > steel > wrought iron

cast iron = steel > wrought iron

Conversion of ammonium carbamate into urea is

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Hydrolysis

Hydrogenation

Hydration

Dehydration

Which one is not electrophile

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BF3

SO3

AlCl3

NH3

An sp3- hybrid orbital contains.

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25% s- characters

50% s- characters

75% s- characters

100% s - characters

Ethyl alcohol on reacting with orthoboric acid form

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Ethyl borate

Boric acid

Boron acetate

Borax

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