MEDIUM
11th CBSE
IMPORTANT
Earn 100

Which of the following statements about hydrogen is incorrect? 

50% studentsanswered this correctly

Important Questions on Hydrogen

HARD
11th CBSE
IMPORTANT
Pradeep's New Course CHEMISTRY Vol.II>Chapter 9 - Hydrogen>Competition Focus>Q 66
Water can act as.
HARD
11th CBSE
IMPORTANT
Pradeep's New Course CHEMISTRY Vol.II>Chapter 9 - Hydrogen>Competition Focus>Q 67
The reagents used for softening of the temporary hardness of water is/are.
HARD
11th CBSE
IMPORTANT
Pradeep's New Course CHEMISTRY Vol.II>Chapter 9 - Hydrogen>Competition Focus>Q 68
When zeolite, which is hydrated sodium aluminum silicate, is treated with hard water, the sodium ions are exchanged with.
HARD
11th CBSE
IMPORTANT
Pradeep's New Course CHEMISTRY Vol.II>Chapter 9 - Hydrogen>Competition Focus>Q 69
Which of the following has lower value of D2O than for H2O?
HARD
11th CBSE
IMPORTANT
Pradeep's New Course CHEMISTRY Vol.II>Chapter 9 - Hydrogen>Competition Focus>Q 70
Fe3+ is reduced to Fe2+ by using.
HARD
11th CBSE
IMPORTANT
Pradeep's New Course CHEMISTRY Vol.II>Chapter 9 - Hydrogen>Competition Focus>Q 71
Which of the following statements are correct?
HARD
11th CBSE
IMPORTANT
Pradeep's New Course CHEMISTRY Vol.II>Chapter 9 - Hydrogen>Competition Focus>Q 73
The correct increasing order of the acidity of CO2, H2O and  H2O2 is.
HARD
11th CBSE
IMPORTANT
Pradeep's New Course CHEMISTRY Vol.II>Chapter 9 - Hydrogen>Competition Focus>Q 74
The volume of 10 volume H2O2 solution that decolourises 200 mL of 2N KMnO4 solution in acidic medium is.