1
JEE Main 2020 (Online) 7th January Evening Slot
MCQ (Single Correct Answer)
+4
-1
Change Language
Within each pair of elements F & Cl, S & Se, and Li & Na, respectively, the elements that release more energy upon and electron gain are :
A
F, S and Li
B
Cl, Se and Na
C
Cl, S and Li
D
F, Se and Na
2
JEE Main 2020 (Online) 7th January Evening Slot
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
Change Language
Among the statements (a) - (d), the correct ones are :
(a) Decomposition of hydrogen peroxide gives dioxygen.
(b) Like hydrogen peroxide, compounds, such as KCIO3, Pb(NO3)2 and NaNO3 when heated liberate dioxygen.
(c) 2-Ethylanthraquinone is useful for the industrial preparation of hydrogen peroxide.
(d) Hydrogen peroxide is used for the manufacture of sodium perborate.
A
(a), (b), (c) and (d)
B
(a) and (c) only
C
(a), (b) and (c) only
D
(a), (c) and (d) only
3
JEE Main 2020 (Online) 7th January Evening Slot
MCQ (Single Correct Answer)
+4
-1
Change Language
The ammonia (NH3) released on quantitative reaction of 0.6 g urea (NH2CONH2) with sodium hydroxide (NaOH) can be neutralized by :
A
200 ml of 0.02 N HCl
B
100 ml of 0.2 N HCl
C
100 ml of 0.1 HCl
D
200 ml of 0.4 N HCl
4
JEE Main 2020 (Online) 7th January Evening Slot
MCQ (Single Correct Answer)
+4
-1
Change Language
In the following reaction sequence,

JEE Main 2020 (Online) 7th January Evening Slot Chemistry - Compounds Containing Nitrogen Question 140 English
The major product B is :
A
JEE Main 2020 (Online) 7th January Evening Slot Chemistry - Compounds Containing Nitrogen Question 140 English Option 1
B
JEE Main 2020 (Online) 7th January Evening Slot Chemistry - Compounds Containing Nitrogen Question 140 English Option 2
C
JEE Main 2020 (Online) 7th January Evening Slot Chemistry - Compounds Containing Nitrogen Question 140 English Option 3
D
JEE Main 2020 (Online) 7th January Evening Slot Chemistry - Compounds Containing Nitrogen Question 140 English Option 4
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