In primary alkyl halides the halogen atom is attached to a carbon which is further attached to how many carbon atoms__________________?
(A) two
(B) three
(C) one
(D) four
Which one of the following molecules does not form alcohol when reacts with Grignard reagent ?
(A) formaldehyde
(B) acetaldehyde
(C) propanone
(D) carbondioxide
K2Cr2O7/H2SO4 generate____________________?
(A) Oxygen
(B) Hydrogen
(C) Nascent oxygen[O]
(D) Nascent hydrogen[H]
The process of fermentation of starch involve many enzymes the sequence of enzymes used are____________________?
(A) Diastase-maltase-zymase
(B) Zymase-maltase-diastase
(C) Maltase-diastase-zymase
(D) Diastase-zymase-maltase
The residue obtained after the crystallization of sugar from concentrated sugar cane juice is called__________________?
(A) Mother liquor
(B) Filterate
(C) Extract
(D) Molasses
Which one of the following is also known as tartaric acid ?
(A) 2 3-dihydroxy butance 1 4 -dioic acid
(B) 2 3 -dihydroxy butanedioic acid
(C) 2 3 -dihydroxy butanioc acid
(D) 2 2 -dihydroxy butanoic acid
Which one of the following is termed as benzul alcohol ?
(A) C6H5OH
(B) C6H5CH(OH)2
(C) C6H5CH2OH
(D) C6H5COOH
Alkyl halides undergo a type of reaction_________________?
(A) Nucleophilic substitution
(B) Nucleophilic addition
(C) Elimination
(D) both A & C
Ethylene epoxide treated with Grignards reagent followed by acid hydrolysis yield __________________?
(A) primary alcohol
(B) secondary alcohol
(C) tertiary alcohol
(D) dihydric alcohol
Which one of the following reactants will be required to form straight chain alcohol by using Grignard reagent________________?
(A) formaldehyde
(B) ketone
(C) ethylene epoxide
(D) both A & C