Question

An element X combines with hydrogen to form a compound XH3. The element Xis placed on the right side of the periodic table. Which of the following statement is correct for element X?
I. Has two valence electrons.
II. Is a metal and is solid.
III. Is a non-metal and is a gas.
IV. Has five valence electrons.
V. XH3 reacts with water to forma basic compound.
A. I, H and III
B. II, III and IV
C. III, IV and V
D. V, I and II

Answer 1

An element X combines with hydrogen to form a compound XH3. The element X is placed on the right side of the periodic table. The element X can be aluminum. It belongs to group IIIA or 13.

As the electronic configuration of Al is 2,8,3.

A. Has 3 valency.

B. Is a metal and is solid.

E AlH3 reacts with water to form a basic compound Al(OH)3.

AlH3+3H2O→Al(OH)3+3H2

This statements V,I&II are correct

Hope it helps

Mark it as BRAINLIEST if you are satisfied with the answer

Answer 2

Answer:

D 1,2 ,5

Explanation:

has two valence electrons

is a metal and is solid