The base that neutralizes the acidity in stomach and acts as an antacid

1. Ammonium hydroxide
2. Aluminium hydroxide
3. Magnesium hydroxide
4. Calcium oxide

Reaction of zinc metal with sodium hydroxide will lead to the formation of

1. sodium zincate
2. sodium chloride
3. zinc hydroxide
4. zinc aluminate

During the electrolysis of aqueous copper sulphate using copper electrodes, copper ions are generated at the anode that go into the copper sulphate solution used as electrolyte.

Which of the following is correct regarding the mass of anode

P. Mass of anode remains same
Q. Mass of anode gradually decreases
R. Mass of anode gradually increases

1. Only P
2. Only Q
3. Both P and Q
4. P, Q and R

The element which will have highest ionization potential is ……………

1. calcium
2. fluorine
3. helium
4. neon