JEE Main 2022 (Online) 29th June Morning Shift | Hydrogen Question 27 | Chemistry

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 :

number of protons.

atomic number.

electronic configuration.

atomic mass.

JEE Main 2022 (Online) 28th June Morning Shift

MCQ (Single Correct Answer)

-1

Out of Syllabus

Dihydrogen reacts with CuO to give :

CuH₂

Cu₂O

Cu(OH)₂

JEE Main 2022 (Online) 26th June Evening Shift

MCQ (Single Correct Answer)

-1

Out of Syllabus

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

CaCO₃ and Mg(OH)₂

CaCO₃ and MgCO₃

Ca(OH)₂ and MgCO₃

Ca(OH)₂ and Mg(OH)₂

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