General
✓✗Which one of the following is not an organic acid?
- ethanoic acid
- formic acid
- citric acid
- carbonic acid
General
✓✗Which one of the following is a property of an acid?
- they are sour in taste
- they turn blue litmus red
- acid neutralizes a base into salt and water
- all the above
General
✓✗The compounds formed during electrolysis of brine is
- Cl2
- H2
- NaOH
- All of these
General
✓✗Chemical formula of Gypsum is
General
✓✗When a gas is passed through dry slaked lime, an oxidising agent is produced. Then the gas is
- H2
- O2
- Cl2
- N2
General
✓✗A salt whose aqueous solution will have a pH of more than 7 will be
-
-
- NaCl
-
General
✓✗Universal indicator with saliva will give
- greenish yellow
- greenish blue
- red
- purple
General
✓✗Which is a soluble base in water?
General
✓✗Baking powder is a mixture of NaHCO3 and
- Ascorbic acid
- Tartaric acid
- Citric acid
- Formic acid
General
✓✗If HCl gas is passed over dry blue litmus paper
- blue litmus paper remains blue
- blue litmus paper turns red
- blue litmus paper turns green
- blue litmus paper turns colourless