1
JEE Main 2017 (Online) 9th April Morning Slot
MCQ (Single Correct Answer)
+4
-1
Change Language
Which of the following ions does not liberate hydrogen gas on reaction with dilute acids ?
A
Ti2+
B
V2+
C
Cr2+
D
Mn2+
2
JEE Main 2017 (Online) 9th April Morning Slot
MCQ (Single Correct Answer)
+4
-1
Change Language
The incorrect statement among the following is :
A
$$\alpha $$-D-glucose and $$\beta $$-D-glucose are anomers.
B
$$\alpha $$-D-glucose and $$\beta $$-D-glucose are enantiomers.
C
Cellulose is a straight chain polysaccharide made up of only $$\beta $$-D-glucose units.
D
The penta acetate of glucose does not react with hydroxyl amine
3
JEE Main 2017 (Online) 9th April Morning Slot
MCQ (Single Correct Answer)
+4
-1
Change Language
A compound of molecular formula C8H8O2 reacts with acetophenone to form a single cross-aldol product in the presence of base. The same compound on reaction with conc. NaOH forms benzyl alcohol as one of the products. The structure of the compound is :
A
JEE Main 2017 (Online) 9th April Morning Slot Chemistry - Aldehydes, Ketones and Carboxylic Acids Question 188 English Option 1
B
JEE Main 2017 (Online) 9th April Morning Slot Chemistry - Aldehydes, Ketones and Carboxylic Acids Question 188 English Option 2
C
JEE Main 2017 (Online) 9th April Morning Slot Chemistry - Aldehydes, Ketones and Carboxylic Acids Question 188 English Option 3
D
JEE Main 2017 (Online) 9th April Morning Slot Chemistry - Aldehydes, Ketones and Carboxylic Acids Question 188 English Option 4
4
JEE Main 2017 (Online) 9th April Morning Slot
MCQ (Single Correct Answer)
+4
-1
Change Language
The group having triangular planar structures is :
A
BF3, NF3, $$CO_3^{2 - }$$
B
$$CO_3^{2 - }$$, $$NO_3^ - $$, SO3
C
NH3, SO3, $$CO_3^{2 - }$$
D
NCl3, BCl3, SO3
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