MCQs
Read every question, see the correct answer, and understand the explanation at your own pace. Study mode has no timer and no negative marking.
Correct answer
A. C.A. Parson
Explanation
C.A. Parson is the correct answer. Review the question and compare it with the other choices to remember this fact for future exams.
Correct answer
A. DNA and Proteins
Explanation
DNA and Proteins is the correct answer. Review the question and compare it with the other choices to remember this fact for future exams.
Correct answer
B. Causes skin cancer
Explanation
Causes skin cancer is the correct answer. Review the question and compare it with the other choices to remember this fact for future exams.
Correct answer
D. Coulumb
Explanation
Coulumb is the correct answer. Review the question and compare it with the other choices to remember this fact for future exams.
Correct answer
D. 7.35-7.45
Explanation
7.35-7.45 is the correct answer. Review the question and compare it with the other choices to remember this fact for future exams.
Correct answer
D. Lithium
Explanation
The lightest or least dense metal that is a pure element is lithium, which has a density of 0.534 g/cm3. This makes lithium nearly half as dense as water, so if lithium was not so reactive, a chunk of the metal would float on water.
Correct answer
A. plasma
Explanation
plasma is the correct answer. Review the question and compare it with the other choices to remember this fact for future exams.
Correct answer
D. Potassium dichromatic-sulphuric acid
Explanation
Potassium dichromatic-sulphuric acid is the correct answer. Review the question and compare it with the other choices to remember this fact for future exams.
Correct answer
A. Gases
Explanation
Gases is the correct answer. Review the question and compare it with the other choices to remember this fact for future exams.
Correct answer
C. longest night
Explanation
longest night is the correct answer. Review the question and compare it with the other choices to remember this fact for future exams.