Question # 1

Micro-nutrient is required in quantity for plant growth ranging from

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4-40 gm

6-200 gm

6-200 kg

4-40 kg

Ammonium nitrate fertilizers is not used for which crop

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Cotton

Wheat

Sugar cane

Paddy rice

Woody raw material for paper pulp is obtained from

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Cotton

Bagasse

Poplar

Rice straw

Which acid can not be stored in glass bottles.

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HCl

HF

H2SO4

HNO3

Out of all the elements of Group V-A the highest ionization energy is possessed by

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N

P

Sb

Bi

The macronutrients are required in quantities ranging from

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4-40 kg per acre

10-100 kg per acre

5-100 kg per acre

5-200 kg per acre

Majority of the elements of the periodic table are.

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Semi metals

Non metals

Metals

Noble metals

Which one is fatty acid

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Benzoic acid

Malonic acid

Phtalic acid

Palmitic acid

The electrophile in Aromatic sulphonation is

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H₂SO₄

HSO₄^1-

SO₃

SO₃¹⁺

An sp3- hybrid orbital contains.

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25% s- characters

50% s- characters

75% s- characters

100% s - characters

Acetone reacts with HCN to form a cyanohydrin. It is an example of.

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Electrophilic addition

Electrophilic substitution

Nucleophilic addition

Nucleophilic substitution

Stability of halogen molecules decreases from

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F2 to I1

Cl2 to I2

I2 to F2

I2 to Cl2

Which one is alcohol in the following

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CH₃.CH₂.OH

CH₃.O.CH₃

CH₃COOH

CH₃.CH₂.Br

In primary alkyl halides, the halogen atom is attached to a carbon which is further attached to how many carbon atoms

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Two

Three

One

Four

The process used to improve quality of gasoline

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Thermal Cracking

Reforming

Combination

Steam Cracking

Which is called marsh gas

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S2Cl2

SOCl2

CH4

CHBr3

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

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N2O

NO

NO2

N2O5

The oxides of beryllium are

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Basicity

Rancidity

Amphoteric

none of all

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