1
JEE Main 2021 (Online) 20th July Morning Shift
MCQ (Single Correct Answer)
+4
-1
Change Language
The correct structure of Rhumann's Purple, the compound formed in the reaction of ninhydrin with proteins is :
A
JEE Main 2021 (Online) 20th July Morning Shift Chemistry - Compounds Containing Nitrogen Question 118 English Option 1
B
JEE Main 2021 (Online) 20th July Morning Shift Chemistry - Compounds Containing Nitrogen Question 118 English Option 2
C
JEE Main 2021 (Online) 20th July Morning Shift Chemistry - Compounds Containing Nitrogen Question 118 English Option 3
D
JEE Main 2021 (Online) 20th July Morning Shift Chemistry - Compounds Containing Nitrogen Question 118 English Option 4
2
JEE Main 2021 (Online) 20th July Morning Shift
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
Change Language
Green chemistry in day-to-day life is in the use of :
A
Chlorine for bleaching of paper
B
Large amount of water alone for washing clothes
C
Tetrachloroethene for laundry
D
Liquified CO2 for dry cleaning of clothes
3
JEE Main 2021 (Online) 20th July Morning Shift
MCQ (Single Correct Answer)
+4
-1
Change Language
The correct order of intensity of colors of the compounds is :
A
$${[Ni{(CN)_4}]^{2 - }} > {[NiC{l_4}]^{2 - }} > {[Ni{({H_2}O)_6}]^{2 + }}$$
B
$${[Ni{({H_2}O)_6}]^{2 + }} > {[NiC{l_4}]^{2 - }} > {[Ni{(CN)_4}]^{2 - }}$$
C
$${[NiC{l_4}]^{2 - }} > {[Ni{({H_2}O)_6}]^{2 + }} > {[Ni{(CN)_4}]^{2 - }}$$
D
$${[NiC{l_4}]^{2 - }} > {[Ni{(CN)_4}]^{2 - }} > {[Ni{({H_2}O)_6}]^{2 + }}$$
4
JEE Main 2021 (Online) 20th July Morning Shift
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
Change Language
The set in which compounds have different nature is :
A
B(OH)3 and H3PO3
B
B(OH)3 and Al(OH)3
C
NaOH and Ca(OH)2
D
Be(OH)2 and Al(OH)3
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