1
JEE Main 2018 (Online) 16th April Morning Slot
MCQ (Single Correct Answer)
+4
-1
Change Language
Among the following, the incorrect statement is :
A
Maltose and lactose has 1, 4 - glycosidic linkage.
B
Sucrose and amylose has 1, 2 - glycosidic linkage
C
Cellulose and amylose has 1, 4 - glycosidic linkage.
D
Lactose contains $$\beta $$-D-galactose and $$\beta $$-D-glucose.
2
JEE Main 2018 (Online) 16th April Morning Slot
MCQ (Single Correct Answer)
+4
-1
Change Language
For standardizing NaOH solution, which of the following is used as a primary standard ?
A
Ferrous Ammonium Sulfate
B
dil. HCl
C
Oxalic acid
D
Sodium tetraborate
3
JEE Main 2018 (Online) 16th April Morning Slot
MCQ (Single Correct Answer)
+4
-1
Change Language
When XO2 is fused with an alkali metal hydroxide in presence of an oxidizing agent such as KNO3 ; a dark green product is formed which disproportioates in acidic solution to afforda dark purple solution. X is :
A
Ti
B
V
C
Cr
D
Mn
4
JEE Main 2018 (Online) 16th April Morning Slot
MCQ (Single Correct Answer)
+4
-1
Change Language
Which of the following conversions involves change in both shape and hybridisation ?
A
NH3 $$ \to $$ NH4+
B
CH4 $$ \to $$ C2H6
C
H2O $$ \to $$ H3O+
D
BF3 $$ \to $$ BF4$$-$$
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