Give point of resemblance of hydrogen with alkali metal.

Give point of resemblance of hydrogen with alkali metal.
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Answer :

Ans: 1 like alkali metals hydrogen also has one electron in its valence shell
 2 like alkali metals hydrogen loses its only electron to form proton(H+)
 3 like alkalis metals hydrogen exhibits an oxidation state of +1 in its compounds
 4 When an aqueous solution of HCl is electrolysed H2 is librated at the cathode in the same way as alkali metals are librated at the cathode during the electrolysis of their fused halides
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Which alkali metal is denser than water?

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The metal shows the characteristics of both acid and alkali?

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An alkali metal salt of Palmitic acid is known as (A) Soap (B) Metallic soap (C) Detergent (D) Alkaloid

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Electrometallurgical methods of metal extraction is normally used for those metals (A) Whose oxide/ore is not reduced by carbon (B) Which fall in the category of alkali & alkaline earth metals (C) Which stands higher in the electrochemical series of the metal (D) All (A), (B) & (C)

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Give reason .the compounds of alkaline earth metals are less ionic than alkali metals

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Give reason for the following: (i)alkali metals do not occur free in nature. (ii)alkali metals have low I .E. (iii)LiI is more soluble than KI in ethanol.

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Buffer solutions have constant acidity and alkalinity because: (1) they have fixed value of pH (2) these give unionised acid or base on reaction with added acid or alkali (3) acids and alkalies in these solutions are shielded from attack by other ions (4) they have large excess of H+ or OH– ions

Description : Buffer solutions have constant acidity and alkalinity because: (1) they have fixed value of pH (2) these give unionised acid or base on reaction with added acid or alkali (3) acids and alkalies in these solutions are shielded from attack by other ions (4) they have large excess of H+ or OH– ions

Last Answer : these give unionised acid or base on reaction with added acid or alkali

Why do the the alkali metals give blue solution ,when treated with liq NH3?

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Give reason for the colour imparted to the flame by alkali metals

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Give reason .the compounds of alkaline earth metals are less ionic than alkali metals

Description : Give reason .the compounds of alkaline earth metals are less ionic than alkali metals

Last Answer : This is due to increased nuclear charge and smaller size.