Question

[5]
Q.1 Complete the statements given below by filling in the blank with the correct word/s.
1. The formula of silver [I] chloride is [AgCl/AgCl2].
2. The basic unit of an element is a/an
[molecule / atom/ion]
3. Atom contains
[neutron/nucleus), with positively charged [electrons / protons).
4. Element
(calcium/ lead/carbon] has the symbol derived from its Latin name 'plumbum'.
5. From the elements - He, Br, Pt & O; the element which forms a polyatomic molecule is
& which is liquid at room temperature is
6. The valency of iron in FeO is [27/1+of chlorine [chloride) in CaCl, is [10/2")
and of dichromate in K2Cr2O, is [2*/2-1
Q.2 Match the statements - 1 to 10 below with their correct answers from - A to J.
[5]
1. Elements having valency of two.
A: Br1-
2 An anion
B: Divalent
3. A gaseous non-metal
C: Reactants
4. A cation
D:Ammonium
5. The term used for the substances which take part in the chemical reaction E: Nitric oxide
6. The meaning of the symbol 'A' over the arrow in a chemical equation F: Nitrogen
7. The chemical name for nitrogen monoxide
G:Zero
8. A radical containing nitrogen & hydrogen only
H:Nitrous oxide
9. The chemical name for dinitrogen oxide
I: Heat required
10. The valency of noble gases
J: K1+​

Answer 1

Answer:

option 6 is the correct answer

Answer 2

Explanation:

5

2- anion is a negative charged particles