Which has least melting point?

L i

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N a

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K

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Solution

The correct option is C $K$
$L i$ $N a$ $K$
Melting point $(^{0} C)$ 180 98 64

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Similar questions

C s^{+}

L i, N a, K,

R b, L i

L i

E_{L i^{\oplus} | L i}^{⊖} = - 3.05 V

E_{N a^{\oplus} | N a}^{⊖} = - 2.71 V

E_{K^{\oplus} | K}^{⊖} = - 2.93 V

2 M + H_{2} O \to 2 M O H + H_{2}

	Statements	Score
a.	$Δ G$ values have nothing to do with kinetics of the reaction.	4
b.	The metal having large standard oxidation potential will have lesseer reactivity.	3
c.	Potassium (K) has low melting point and heat of reaction which is sufficient to make it melt or even vapourize. This leads to expotential increase in its surface area.	2
d.	The ionization potential of K is smaller than that of Li.	1

N a, L i, R b,

K

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