Here, out of the words in bold, ‘presume’ and ‘concentrations’ are inappropriate. The words in 1 cannot be exchanged for the bold words. 2 and 3 are correct.
Anions are formed through which process?
Absolute alcohol is prepared from rectified spirit by using the following process :
Which polymer is formed by the copolymerization of phenol and formaldehyde?
100 gram of ice at 0°C is mixed with 100 gram of water at 80°C. What will be the final temperature of the mixture ?
The word “acid” comes from a ________ word.
On a clean glass plate, a drop of water spreads to form a thin layer whereas a drop of mercury remains almost spherical because:
Which of the following relation is correct?
What does a catalyst do in a reaction?
Which of the following is not a natural polymer?
Magnesium oxide (MgO) + Water (H2O) = ?