Question

A. Choose the most appropriate answer
1. Which of the following is not an indicator?
a. blue litmus
b. methyl orange
e. phenolphthalein d. Digene
2. Which of the following is a strong acid?
a nitric acid b. citric acid
e. acetic acid
d. tartaric acid
3. Which of these is not a base?
a, sodium hydroxide
b. magnesium hydroxide
c. copper carbonate
d. ammonium hydroxide
4. Which of these metals cannot be used to prepare hydrogen by the action of an acid?
a sodium
b. iron
e, calcium
5. What is the common name of sodium bicarbonate?
a. phitkarl
b. caustic soda
c. baking powder d. blue vitriol
d. copper​

Answer 1

Answer:

blue litmus

acetic acid

sodium hydroxide

sodium

baking powder

Explanation:

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Answer 2

Answer:

1.Digene

2.Nitric Acid

3.Copper Carbonate

4.Copper

5. Baking Powder