MEDIUM
8th CBSE
IMPORTANT
Earn 100
Hydrogen is included in the reactivity series of metals because _____.
(i) It is actually a metal.
(ii) It can lose electron to form a positive ion.
Which of the following is true?
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Important Questions on Question Bank for Competitive Exams (NTSE/NSO)
HARD
8th CBSE
IMPORTANT
Which of the following is not a product of destructive distillation of coal?
EASY
8th CBSE
IMPORTANT
Oil was first discvered in India in , at _____.
EASY
8th CBSE
IMPORTANT
Which of the following is the least reactive metal?
EASY
8th CBSE
IMPORTANT
LPG used in our homes mainly contains _____.
EASY
8th CBSE
IMPORTANT
Which of the following chemicals is nowadays not used for making matchsticks?
EASY
8th CBSE
IMPORTANT
Which of the following is not responsible for greenhouse effect?
EASY
8th CBSE
IMPORTANT
Which of the following is an endemic species found in the Western Ghats of South India?
EASY
8th CBSE
IMPORTANT
The species that are declining but still have sufficient number of individuals in the habitat are included in the group of _____.
