General
✓✗A milk man adds a very small amount of baking soda to fresh milk. This is to ____
- increase the rate of fermentation
- decrease the rate of fermentation
- increase its quality
- increase its quantity
General
✓✗The acid used in the manufacture of glass is
- ascorbic acid
- boric acid
- phosphoric acid
- tartaric acid
General
✓✗Which of the following is a weak mineral acid?
- acetic acid
- carbonic acid
- dilute HCl
- ethanoic acid
General
✓✗Calcium oxychloride is commonly known as
- POP
- Gypsum
- Bleaching powder
- Baking powder
General
✓✗A gas dissolved in water produces a solution which used in lead storage batteries. Then the gas is
- SO3
- SO2
- H2SO4
- H2SO3
General
✓✗The compound which contains replaceable hydrogen is a/an
- acid
- base
- both ‘a’ and ‘b’
- None of these
General
✓✗Which one of the following is heated at a temperature of 100°C to obtain Plaster of Paris?
General
✓✗Chemical formula of bleaching power is
General
✓✗A strong acid in solution produces
- More molecules
- mostly ions
- both molecules and ions
- mostly water
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