13 JEE Main 2019 Hydrogen previous-year questions with verified answers and step-by-step solutions.
These are the JEE Main 2019 previous-year questions from the Hydrogen chapter of Chemistry. Each links to a full solution with a verified answer key. To see the whole chapter across all years, visit the Hydrogen chapter hub.
The chemical nature of hydrogen peroxide is:
The temporary hardness of water is due to:
The strength of 11.2 volume solution of H 2 O 2 is [Given that, the molar mass of H = 1   g   m o l - 1 and O…
The correct statements among a to d are: a Saline hydrides produce H 2 gas when reacted with H 2 O . b Reaction of L i…
The volume strength of 1 M   H 2 O 2 is: (Molar mass of H 2 O 2 = 34   g   mol - 1 )
The total number of isotopes of hydrogen and number of radioactive isotopes among them, respectively, are
What is the hardness of a water sample ( in terms of equivalents of CaCO 3 ) containing 10 - 3 M   CaSO 4 ? ( Mol…
The synonym for water gas when used in the production of methanol is:
100   m L   of a water sample contains 0.81   g of calcium bicarbonate and 0.73 g of magnesium bicarbona…
NaH is an example of:
Log in to unlock the full list, track what you've solved, and practice on the TCS iON-style CBT player. It's free.