Which response includes only the true statements concerning the characteristics of covalent compounds?
$I$ . These compounds can be gases, liquids, or solids with low melting points.
$I I$ . Most are soluble in polar solvents.
$I I I$ . Liquid and molten compounds do not conduct electricity.
$I V$ . Aqueous solutions of these compounds are very good conductors of electricity.

I

and

I I I

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I I

and

I V

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I, I I I

and

I V

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I, I I

and

I I I

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Solution

The correct option is C $I, I I$ and $I I I$
I , II and III statement about covalent compounds are correct but the IV one is not correct since the aqueous solution of the covalent compound do not contain free ions and thus are not the good conductors of electricity .

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Similar questions

Q. Question 2
Which of the following statements are usually correct for carbon compounds? These
(i) Are good conductors of electricity
(ii) Are poor conductor of electricity
(iii) Have strong forces of attraction between their molecules
(iv) Do not have strong forces of attraction between their molecules

(a) (i) and (iii)
(b) (ii) and (iii)
(c) (i) and (iv)
(d) (ii) and (iv)

Explain the following:
(a) Covalent compounds are generally gases or liquids or soft solids.
(b) Covalent compounds have low melting point and boiling point.
(c) Non-polar covalent compounds are insoluble in water.
(d) Polar covalent compounds are good conductors of electricity.

Q. Among the following the compounds which can undergo an

S_{N} 1

reaction in an aqueous solution, are:

Aluminium is used for making cooking utensils. Which of the following properties of aluminium are responsible for the same?
(i) Good thermal conductivity
(ii) Good electrical conductivity
(iii) Ductility
(iv) High melting point

(a) (i) and (ii) (b) (i) and (iii)

Q. Which of the following are compounds ?
(i) CO
(ii) No
(iii) NO
(iv) Co

(a) (i) and (ii)
(b) (ii) and (iii)
(c) (i) and (iii)
(d) (ii) and (iv)

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The correct option is C I,II and IIII , II and III statement about covalent compounds are correct but the IV one is not correct since the aqueous solution of the covalent compound do not contain free ions and thus are not the good conductors of electricity .

The correct option is C $I, I I$ and $I I I$
I , II and III statement about covalent compounds are correct but the IV one is not correct since the aqueous solution of the covalent compound do not contain free ions and thus are not the good conductors of electricity .