Name two elements in each case :
Alkali metals

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Solution

2 examples : Sodium and Potassium

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Name :

(a) a metallic hydroxide soluble in excess of $N H_{4} O H$ .
(b) a metallic oxide soluble in excess of caustic soda solution. (c) a strong alkali.
(d) a weak alkali.
(e) two colourless metal ions.
(f) two coloured metal ions.
(g) a metal that evolves a gas which burns with a pop sound when boiled with alkali solutions.
(h) two bases which are not alkalis but dissolve in strong alkalis. (i) a coloured metallic oxide which dissolves in alkalis to yield colourless solutions.
(j) a colourless cation, not a representative element.

Q. Name
(a) a metallic hydroxide soluble in excess of NH₄OH.
(b) a metallic oxide soluble in excess of caustic soda solution.
(c) a strong alkali
(d) a weak alkali
(e) two coloured metal ions.
(f) two bases which are not alkalis but dissolve in strong alkalis.
(g) a coloured metallic oxide which dissolves in alkalis to yield colourless solutions.

Q. Which of the following elements are alkali metals?

Q. In the case of alkali metals:

Q. Name the following with reference to the elements of the modern periodic table.
The alkali metal in period 2

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Name two elements in each case :Alkali metals

2 examples : Sodium and Potassium

Name two elements in each case :
Alkali metals