1
JEE Advanced 2019 Paper 2 Offline
MCQ (More than One Correct Answer)
+4
-1
Change Language
With reference to aqua-regia, choose the correct option(s).
A
Aqua-regia is prepared by mixing conc. HCl and conc. HNO3 in 3 : 1 (v / v) ratio
B
The yellow colour of aqua-regia is due to the presence of NOCl and Cl2
C
Reaction of gold with aqua-regia produces an anion having Au in +3 oxidation state
D
Reaction of gold with aqua regia produces NO2 in the absence of air
2
JEE Advanced 2019 Paper 2 Offline
MCQ (More than One Correct Answer)
+4
-1
Change Language
Choose the correct option(s) from the following.
A
Teflon is prepared by heating tetrafluoroethene in presence of a persulphate catalyst at high pressure.
B
Natural rubber is polyisoprene containing trans alkene units
C
Cellulose has only $$\alpha $$-D-glucose units that are joined by glycosidic linkages
D
Nylon-6 has amide linkages
3
JEE Advanced 2019 Paper 2 Offline
MCQ (More than One Correct Answer)
+4
-1
Change Language
The cyanide process of gold extraction involves leaching out gold from its ore with CN$$-$$ in the presence of Q in water to form R. Subsequently, R is treated with T to obtain Au and Z. Choose the correct option(s).
A
Q is O2
B
Z is [Zn(CN)4]2$$-$$
C
T is Zn
D
R is [Au(CN)4]$$-$$
4
JEE Advanced 2019 Paper 2 Offline
MCQ (More than One Correct Answer)
+4
-1
Change Language
Which of the following reactions produce(s) propane as a major product?
A
JEE Advanced 2019 Paper 2 Offline Chemistry - Hydrocarbons Question 23 English Option 1
B
JEE Advanced 2019 Paper 2 Offline Chemistry - Hydrocarbons Question 23 English Option 2
C
JEE Advanced 2019 Paper 2 Offline Chemistry - Hydrocarbons Question 23 English Option 3
D
JEE Advanced 2019 Paper 2 Offline Chemistry - Hydrocarbons Question 23 English Option 4
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