Complete- -5 MARKS-a Na - Na -b N - N 3-c Cl - e -d Mg - Mg 2-e M -2 HCl - MCl 2-

Each Part: 1 Mark (a) Na e^ → Na^+ (b) N + 3e^ → N^3 (c) Cl + e^ → Cl^ (d) Mg 2e^ → Mg^2+ (e) M + 2HCl → MCl_2 + H_2 ...

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Byju's Answer

Standard X

Mathematics

Formula for Sum of n Terms of an AP

Complete: [5 ...

Question

Complete: [5 MARKS]
(a) $N a - \dots \dots \to N a^{+}$
(b) $N + \dots \dots \to N^{3 -}$
(c) $C l + e^{-} \to \dots \dots$
(d) $M g - \dots \dots \to M g^{2 +}$
(e) $M + 2 H C l \to M C l_{2} + \dots \dots$

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Solution

Each Part: 1 Mark

(a) $N a - e^{-} \to N a^{+}$
(b) $N + 3 e^{-} \to N^{3 -}$
(c) $C l + e^{-} \to C l^{-}$
(d) $M g - 2 e^{-} \to M g^{2 +}$
(e) $M + 2 H C l \to M C l_{2} + H_{2}$

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Complete:

$(a) N a^{-} . . . . . . . . . . . \to N a^{+} (b) N + . . . . . . . . . . . \to N^{3 -} (c) C l + e^{-} \to . . . . . . . . . . . (d) M g - . . . . . . . . . . . \to M g^{2 +} (e) M + H C l \to M C l_{2} + . . . . . . . . . . . (f) M g + H_{2} S O_{4} \to . . . . . . . . . . . + . . . . . . . . . . .$

Question 20

In which of the following pairs, the ions are isoelectronic ?

(a) $N a^{+}, M g^{2 +}$ (b) $A l^{3 +}, O^{-}$ (c) $N a^{+}, O^{2 -}$ (d) $N^{3 -}, C l^{-}$

Question 17
Arrange the following elements in the order of their decreasing metallic character
Na, Si, Cl, Mg, Al

(a) Cl > Si >Al > Mg >Na
(b) Na >Mg >Al >Si > Cl
(c) Na > Al > Mg > Cl > Si
(d) Al > Na> Si > Ca> Mg

Q. Verify n(A