Easy 910 likes

Question

The electronic configuration of a hydride ion (H) is like the electronic configuration of the atom of which element?  [1]

OR

Draw the Lewis dot diagram of H2 molecule. [1]

WBBSE Class X Physical Science Ionic and Covalent Bond 01 Mark 2022

Answer

The hydride ion (H⁻) has gained an extra electron, giving it an electronic configuration similar to that of helium (He), which is 2.

OR

The Lewis dot diagram for the H2 molecule is represented as follows:

H : H

Related Questions

More WBBSE Easy level questions

1/12
Easy
516
Q. How many covalent bonds are present in CHCl3 molecules?
A. In a CHCl3 (chloroform) molecule, there are four covalent bonds.
Easy
617
Q. Give an example of a covalent liquid.
A. An example of a covalent liquid is water (H2O).
Easy
605
Q. The solid state of which of the following compounds is not composed of molecules? (a)...
Easy
685
Q. For which of the following ionic compounds no ion has octet? (a) LiH (b) CaO...
A. (a) LiH Explanation: In lithium hydride (LiH), lithium (Li) has only 2...
Easy
1
Q. Show the conventional representation of the H2O molecule by ‘dash’ sign
A. The conventional representation of an H2O molecule using 'dash' signs is H...
Easy
639
Q. Distinguish between naphthalene and sodium chloride by two physical properties.
A. Properties Sodium chloride Naphthalene Melting Point Has a high melting point (around...
Easy
640
Q. KCl is soluble in which of water and benzene ?
A. KCl is soluble in water but insoluble in benzene.
Easy
660
Q. The electronic configuration of Na and Cl atoms in the compound NaCl is
A. (c) Na - 2, 8, 1 : Cl - 2, 8, 7...
Easy
627
Q. Which compound is formed by the reaction of atmospheric nitrogen and oxygen as a result...
A. The compound formed by the reaction of atmospheric nitrogen and oxygen as...
Easy
946
Q. Mention one reason for the relative chemical inertness of N2
A. One reason for the relative chemical inertness of N₂ (nitrogen gas) is...
Easy
517
Q. The formation of an ionic compound is made possible largely by the formation of a...
A. True. The formation of an ionic compound is made possible largely by...
Easy
1
Q. In the formation of CaO how many electrons are transferred from Ca atom to O...
A. c. 2 Explanation: Calcium (Z = 20) has electronic configuration: 2, 8,...