Question
If β+β means βββ, βββ means βΓβ,
βΓβ means βΓ·β, and βΓ·β means β+β, what will come in place of the question mark (?) in the following equation? 12 β 182 Γ 14 Γ· 45 + 24 = ?Solution
The correct answer is B
A storm is predicted if atmospheric pressure β
Activated charcoal is used to remove colouring matter from pure substances by which of the following process?
The sudden fall of atmospheric pressure indicates β
Bleaching powder is represented as ______.
The conversion of hard water into soft water by boiling or adding calcium hydroxide is called:
Who measured the velocity of light first?
In a compound, the elements are always present in definite proportions by:
In nuclear reactor, heavy water is used as β
Which of the following does not give effervescence with sodium carbonate?
Which of the following has the lowest ionization enthalpy?