Question

Which of the following is formed by the reaction of an acid with a base ? [ ]

a) A salt b) An indicator c) A vitamin d) All

2. What is the colour of copper (II) chloride formed in the given chemical equation [ ]

CuO + 2HCl  CuCl

2

+ H2

a) Blue b) Green c) Blueish green d) Both a and b

3. If a base dissolves in water by what name is it better known ? [ ]

a) Neutralisation b) Basic c) Acidic d) Alkali

4. Which solution does not conduct electricity ? [ ]

a) Glucose b) Alcohol c) Sulphuric acid d) Both a and b

5. Which acid is used in storage battries ? [ ]

a) H2

SO4

b) HNO3

c) HCl d) CH3

COOH

6. A solid element is a non-metal, it can form [ ]

a) An acidic oxide b) A basic oxide c) A salt d) A metallic salt

7. The colour of phenolphthlein in acidic medium is [ ]

a) Red b) Yellow c) Colourless d) Pink

8. The colour of methyl orange in basic medium is [ ]

a) Yellow b) Red c) Pink d) Colourless

9. In neutral solutions litmus colour is [ ]

a) Red b) Purple c) Yellow d) Green

10. On dissolving bases in water produces ______ ions. [ ]

a) H+ b) OH–

c) H3O+ d) None​

Answer 1

Answer:

question 1:

(a) a salt(when a acid and base reacts nutrialislzation reaction will occurs which helps to form salt)

question 2:

light brown in colour (copper chloride is brown in colour which is the mixture of blue and green )

I think so the option c is correct.

question 3:

conjugate base

question 5:

sulphuric acid plus water (h2so4) i.e. option a

question 4:

both a and b i.e. glucose and alcohol because they don't act as electrolyte

question 6:

a basic oxide

question 7:

pink

question 8:

yellow

question 9:

no change in color when it is in nutral solution

question 10:

h+

hope it helps you:-)