If the for a given reaction has a negative value then which of the following gives the correct relationships for the values of G° and Keq?
< 0; Keq > 1
<0; Keq < 1
> 0; Keq < 1
> 0; Keq > 1
Which of the following is an example for heterogeneous catalysis reaction?
2SO2(g) + O2 2SO3(g)
Hydrolysis of aqueous sucrose solution in the presence of a aqueous mineral acid
2H2O2 (l) 2H2O2(l) + O2(g)
Hydrolysis of liquid in the presence of aqueous mineral acid
The relative reactivities of acyl compounds towards nucleophilic substitution are in the order of
acyl chloride > acid anhydride > ester > amide
ester > acyl chloride > amide > acid anhydride
acid anhydride > amide > ester > acyl chloride
acyl chloride> ester> acid anhydride > amide
Clemmensen reduction of a ketone is carried out in the presence of which of the following?
Zn-Hg with HCl
LiAlH4
H2 and Pt as catalyst
Glycol with KOH
A.
Zn-Hg with HCl
The reducing agent used in Clemmensen reduction is Zn-Hg and HCl. It converts group into -CH2 group
Which one of the following is employed as antihistamine?
Diphenyl hydramine
Norethindrone
Omeprazole
Chloramphenicol
In DNA, the complimentary bases are
adenine and thymine; guanine and cy1osine
adenine and thymine; guanine and uracil
adenine and guanine, thymine and cytosine
uracil and adenine; cytosine and guanine
Which one of the following does not undergo iodoform reaction?
Secondary butyl alcohol
Iso-propyl alcohol
Diethyl ketone
Ethyl alcohol
Which of the following compounds gives carbylamine test?
N-methyl-o-methyl aniline
N, N-dimethyl aniline
2, 4-diethyl aniline
p-methyl-N-methyl benzylamine