Addition of 2% gypsum in cement________________?
(A) Triggers hydration
(B) Triggers hydrolysis
(C) Prevents rapid hardening
(D) all of the above
Aniline is a derivative of benzene which contains__________________?
(A) Imino group
(B) Amino group
(C) Amide group
(D) Nitro group
In benzene sulphonic acid the sulphonic group is attached with benzene ring through ___________________?
(A) Hydrogen
(B) Oxygen
(C) Sulphur
(D) OH
The hydrolysis of Benzenetrizonide will yield three moles of____________________?
(A) Glyoxime
(B) Benzaldehyde
(C) Glycol
(D) Glyoxal
Which compound form benzoic acid on oxidation with acidified KMnO4 or K2Cr2O7 ?
(A) Toluene
(B) Ethyl benzene
(C) n-propyl benzene
(D) All
Replacement of hydrogen of benzene by alkyl group in the presence of alkyl halide & aluminum chloride is known as__________________?
(A) Dows process
(B) Friedel & Craft acylation
(C) Friedel & Craft alkylation
(D) Clemmenson reduction
Which one of the following statement is not correct about benzene ?
(A) On hydrogenation 208 KJ/mole is liberated
(B) C-H bond length in benzene is 1.09 A?
(C) Molecular mass of benzene is 78.108
(D) Resonance energy of benzene is 150.5 K Cal/mole
Which compound will readily undergo sulphonation ?
(A) Benzene
(B) Nitro benzene
(C) Toluene
(D) Chlorobenzene