This chapter is currently out of syllabus
1
JEE Main 2022 (Online) 28th June Evening Shift
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
Change Language

Hydrogen has three isotopes : protium (1H), deuterium (2H or D) and tritium (3H or T). They have nearly same chemical properties but different physical properties. They differ in :

A
number of protons.
B
atomic number.
C
electronic configuration.
D
atomic mass.
2
JEE Main 2022 (Online) 28th June Morning Shift
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
Change Language

Dihydrogen reacts with CuO to give :

A
CuH2
B
Cu
C
Cu2O
D
Cu(OH)2
3
JEE Main 2022 (Online) 26th June Evening Shift
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
Change Language

Boiling of hard water is helpful in removing the temporary hardness by converting calcium hydrogen carbonate and magnesium hydrogen carbonate to :

A
CaCO3 and Mg(OH)2
B
CaCO3 and MgCO3
C
Ca(OH)2 and MgCO3
D
Ca(OH)2 and Mg(OH)2
4
JEE Main 2022 (Online) 26th June Morning Shift
MCQ (Single Correct Answer)
+4
-1
Out of Syllabus
Change Language

Consider the following reaction:

$$2HSO_4^ - (aq)\mathrel{\mathop{\kern0pt\longrightarrow} \limits_{(2)\,Hydrolysis}^{(1)\,Electrolysis}} 2HSO_4^ - + 2{H^ + } + A$$

The dihedral angle in product A in its solid phase at 110 K is :

A
104$$^\circ$$
B
111.5$$^\circ$$
C
90.2$$^\circ$$
D
111.0$$^\circ$$
JEE Main Subjects
EXAM MAP
Medical
NEET
Graduate Aptitude Test in Engineering
GATE CSEGATE ECEGATE EEGATE MEGATE CEGATE PIGATE IN
CBSE
Class 12