Chemistry MCQs with Explanations

Explanation

0.125 is the correct answer. Review the question and compare it with the other choices to remember this fact for future exams.

Explanation

Two is the correct answer. Review the question and compare it with the other choices to remember this fact for future exams.

Explanation

Relative abundance is the correct answer. Review the question and compare it with the other choices to remember this fact for future exams.

Explanation

all is the correct answer. Review the question and compare it with the other choices to remember this fact for future exams.

Explanation

More Soluble in water is the correct answer. Review the question and compare it with the other choices to remember this fact for future exams.

Explanation

Graham’s Law is the correct answer. Review the question and compare it with the other choices to remember this fact for future exams.

Explanation

HF is the correct answer. Review the question and compare it with the other choices to remember this fact for future exams.

Explanation

Chlorofluorocarbons (CFCs) and other halogenated ozone depleting substances (ODS) are mainly responsible for man-made chemical ozone depletion. The total amount of effective halogens (chlorine and bromine) in the stratosphere can be calculated and are known as the equivalent effective stratospheric chlorine (EESC).

Explanation

Urea was the first organic compound to be prepared in the laboratory, which was synthesized by chance.

Explanation

roasted calcareous and argillaceous material is the correct answer. Review the question and compare it with the other choices to remember this fact for future exams.