1
WB JEE 2017
MCQ (Single Correct Answer)
+1
-0.25
Change Language
When BaCl2 is added to an aqueous salt solution, a white precipitate is obtained. The anion among CO$$_3^{2 - }$$, SO$$_3^{2 - }$$ and SO$$_4^{2 - }$$ that was present in the solution can be
A
CO$$_3^{2 - }$$ but not any of the other two
B
SO$$_3^{2 - }$$ but not any of the other two
C
SO$$_4^{2 - }$$ but not any of the other two
D
Any of them
2
WB JEE 2017
MCQ (Single Correct Answer)
+1
-0.25
Change Language
In the IUPAC system, PhCH2CH2CO2H is named as
A
3-phenylpropanoic acid
B
benzylacetic acid
C
carboxyethylbenzene
D
2phenylpropanoic acid
3
WB JEE 2017
MCQ (Single Correct Answer)
+1
-0.25
Change Language
The isomerisation of 1-butyne to 2-butyne can be achieved by treatment with
A
hydrochloric acid
B
ammoniacal silver nitrate
C
ammoniacal cuprous chloride
D
ethanolic potassium hydroxide
4
WB JEE 2017
MCQ (Single Correct Answer)
+1
-0.25
Change Language
The correct order of acid strengths of benzoic acid (X), peroxybenzoic acid (Y) and p-nitrobenzoic acid (Z) is
A
Y > Z > X
B
Z > Y > X
C
Z > X > Y
D
Y > X > Z
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