Which one of the following statements about a compound is NOT correct?
A compound is an impure substance
Correct Answer: (c) A compound is an impure substance
Explanation: A compound is a pure substance consisting of two or more elements chemically bonded together. It is different from a mixture, which is impure.
Similar Questions
Which one of the following is the chemical formula of gypsum?
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Which one of the following statements is correct?
Graphite is a much better conductor of heat and electricity than diamond. This is due to the fact that each carbon atom in graphite:
- Which one of the following is a covalent compound?
Which one of the following is the correct molecular formula of ammonium carbonate if the valency of ammonium ion is (+1) and carbonate anion is (-2)?
Consider the following statements regarding nitrogen:
I. Nitrogen contains a triple bond.
II. Nitrogen is a triatomic gas.
III. Forces acting between nitrogen molecules are weak van der Waals forces.
Which of the statements given above are correct?Consider the following statements regarding hydrogen bonds :
- I. Hydrogen bonds can only form when hydrogen is bonded to oxygen, nitrogen or fluorine.
- II. Hydrogen bonds are intramolecular only.
- III. The strength of a hydrogen bond decreases with a decrease in the electronegativity of the two bonded atoms.
Which of the statements given above is/are not correct?
Important Questions from Chemical Bond and Molecular Structure
Ozone is:
Which of the following has sp 3d hybridization?
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The compound 1, 2-butadiene has:
