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
Answers
Answered by
7
Answer:
1.a.
2.c.
3.d.
4.d.
5.a.
6.I think c.
7.c.
8.c
9.d
10.b
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