EASY
9th ICSE
IMPORTANT
Earn 100

Write the use of oxy-hydrogen torch.

Important Questions on Study of First Element-Hydrogen

MEDIUM
9th ICSE
IMPORTANT
All In One ICSE Chemistry>Chapter 6 - Study of First Element-Hydrogen>EXAM PRACTICE>Q 1
Hydrogen literally means _____ producer. (water/ oxygen/ carbon dioxide)
MEDIUM
9th ICSE
IMPORTANT
All In One ICSE Chemistry>Chapter 6 - Study of First Element-Hydrogen>EXAM PRACTICE>Q 2
Heavy water is made up of _____ isotope of hydrogen. (protium / deuterium)
MEDIUM
9th ICSE
IMPORTANT
All In One ICSE Chemistry>Chapter 6 - Study of First Element-Hydrogen>EXAM PRACTICE>Q 4
_____ is the least reactive metal.
EASY
9th ICSE
IMPORTANT
All In One ICSE Chemistry>Chapter 6 - Study of First Element-Hydrogen>EXAM PRACTICE>Q 5
Zinc metal form oxides having both acidic and _____ nature.
MEDIUM
9th ICSE
IMPORTANT
All In One ICSE Chemistry>Chapter 6 - Study of First Element-Hydrogen>EXAM PRACTICE>Q 7

CuCl+CO+2H2O→_____

(A) CuCl.CO.2H2O                    (B) CuCl2                     (C) CuO

Enter your correct answer as A, B or C.

MEDIUM
9th ICSE
IMPORTANT
All In One ICSE Chemistry>Chapter 6 - Study of First Element-Hydrogen>EXAM PRACTICE>Q 8
Carbon dioxide present as impurities in hydrogen gas is removed using _____ solution.(NaOH/NaCl)
MEDIUM
9th ICSE
IMPORTANT
All In One ICSE Chemistry>Chapter 6 - Study of First Element-Hydrogen>EXAM PRACTICE>Q 9
Hydrogen along with _____ is used in flame for welding metals. (oxygen/ nitrogen/ carbon dioxide)
MEDIUM
9th ICSE
IMPORTANT
All In One ICSE Chemistry>Chapter 6 - Study of First Element-Hydrogen>EXAM PRACTICE>Q 10
Hydrogen in _____ state along with oxygen is used as rocket fuel.