Question # 1

Ranney nickel is prepared by reacting dilute NaOH solution with.

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Nickel

Brass

Nickel and aluminum alloy

Nickel oxide

Which one of the following gases is prepared by heating a mixture of sodium acetate and sodium hydrozide.

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CH4

CH2-CH3

CO2

CO

Alkyl halides are considered to be very reactive compounds towards nucleophile because

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They have an electrophilic carbon

They have an electrophilic carbon and a good leaving group

They have an electrophilic carbon and a bed leaving group

They have a nucleophilic carbon and a good leaving group

Which substance is used to consulate rubber latex

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Ethyl alcohol

Acetaldehyde

Acetic acid

Water

The catalytic oxidation of methane produces

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CO + H₂O

CO₂+ H₂O

C₂+ H₂O

H₃C - OH

S_N2 mechanism involves

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1st order kinetics

2nd order kinetics

3rd kinetics

zero order kinetics

Which element shows highest oxidation state among these

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Zn

Fe

Mn

Sc

Which compound shows maximum hydrogen bonding with water.

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CH3OH

C2H5OH

CH3-O-CH3

C6H5OH

Which one of the following reactants will be required to form ethyl alcohol form ethyl bromide.

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Alcoholic KOH

Aqueous KOH

Alkaline KMnO4

Sodium metal in ether

Peroxyacetyl nitrate (PAN) is a irritant to human beings and it affects

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Eyes

Ears

Stomach

Nose

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

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C2H5Cl

HCl

POCl3

CH3COCl

Which substance is used for silvering of mirror.

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Acetaldehyde

Ethanol

Ethylene glycol

Acetone

Which compound form benzoic acid on oxidation with strong oxidizing agent.

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Toluene

Ethyl benzene

n propyl benzene

All

Which gas act as 'Blistering agent'

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Acetylene

Phosphine

Phosgene

Mustard gas

Which of the following is non-typical transition element

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Cr

Mn

Zn

Fel

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

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CaCO3

CaCl2

MgSO4

AlCl3

Acid rain fist of all was observed by

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Augus Smith

Robert Hook

Mosley

Watson

The number of peptide bonds in dipeptide is

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0

1

2

3

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