Single Choice

Which of the following compounds is covalent ?

A$$H_{2}$$
Correct Answer
B$$CaO$$
C$$KCl$$
D$$Na_2S$$

Solution

Hydrogen $$(H_2)$$ is a covalent molecule as it is formed by sharing a pair of electron between two atoms of same element.
$$CaO, KCl$$ and $$Na_2S$$ are ionic as they are formed between atoms of elctropositive and electronegative elements.

SIMILAR QUESTIONS

Chemical Bonding

Which of the following statement is correct for $$CsBr_{3}$$?

Chemical Bonding

The bond between atoms of two elements of atomic number $$37$$ and $$53$$ is:

Chemical Bonding

Among the following, the element which show inert-pair effect are :

Chemical Bonding

Among the following which one has the highest cation to anion size ratio ?

Chemical Bonding

Atoms $$A, B, C$$ occur in the same period and have one, six and seven as valence electrons respectively. The bond between $$A$$ and $$B$$ will be predominantly:

Chemical Bonding

$$KF$$ combines with $$HF$$ to from $$KHF_{2}$$ The compound contains the species:

Chemical Bonding

The bond between atoms of two elements of atomic number $$37$$ and $$53$$ is:

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