(B) Choose the correct alternat o r
(1) Non-metal that is a good conductor of electricity ...........
(a) Graphite (6) Bromine (c) Diamond (d) Sodium
(2) Which of the following statement is incorrect regarding
weight?
(a) Its value changes from place to place.
(b) Its SI unit is newton.
(c) It is a scalor quantity.
(d) It is the force with which the earth attracts on object.
(3) Alkaline earth metals have valency 2. This means their position
in the modern periodic table is in ....
(a) Group 2 (b) Period 2 (c) Group 16 (d) d-blo
(4) Ethanoic acid reacts with basic salt sodium carbonate to
a salt name .........
(a) Sodium ethanoate (b) Ethyl ethonate
(c) Ethanol
(d) Ethyl sodium
(5) In a double displacement reaction
(a) Ions remain steady. (b) Ions get liberated
(C) Ions are exchanged (d) Ions are not created.
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Answer:
Step-by-step explanation:
1. a. graphite
2. a. its value changes from place to place
3. a. group2 or group 6
4. a. sodium ethanoate
5. c. ions are exchanged
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