451ChemistryMedium
At what digit of PH scale PH is neutral?
A7
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. 7
Explanation
7 is the correct answer. Review the question and compare it with the other choices to remember this fact for future exams.
Correct answer
C. A.E de Chancourtois
Explanation
A.E de Chancourtois is the correct answer. Review the question and compare it with the other choices to remember this fact for future exams.
Correct answer
B. Atomic number
Explanation
Atomic number is the correct answer. Review the question and compare it with the other choices to remember this fact for future exams.
Correct answer
D. Arsenic
Explanation
In China (Province of Taiwan) exposure to arsenic via drinking-water has been shown to cause a severe disease of the blood vessels, which leads to gangrene, known as ‘black foot disease’. This disease has not been observed in other parts of the world, and it is possible that malnutrition contributes to its development. So the correct answer is option C- ‘Arsenic’.
Correct answer
D. From anode to cathode outside the cell
Explanation
From anode to cathode outside the cell is the correct answer. Review the question and compare it with the other choices to remember this fact for future exams.
Correct answer
D. addition reactions
Explanation
addition reactions is the correct answer. Review the question and compare it with the other choices to remember this fact for future exams.
Correct answer
C. 100000
Explanation
100000 is the correct answer. Review the question and compare it with the other choices to remember this fact for future exams.
Correct answer
C. 3.2 x 10-11
Explanation
3.2 x 10-11 is the correct answer. Review the question and compare it with the other choices to remember this fact for future exams.
Correct answer
B. SO3
Explanation
SO3 is the correct answer. Review the question and compare it with the other choices to remember this fact for future exams.
Correct answer
C. sp 2 hybridised
Explanation
sp 2 hybridised is the correct answer. Review the question and compare it with the other choices to remember this fact for future exams.