Quartz is composed of:
Question Quartz is composed of: (a) Calcium sulphate (b) Calcium …
Chemistry MCQ
Dry ice is ________.
Question Dry ice is ________. (a) Solid CO₂ (b) Solid …
Which one of following sets of elements was primarily responsible for the origin of life on the Earth?
Question Which one of following sets of elements was primarily …
The polluted gas emitted from the vehicles is mainly:
Question The polluted gas emitted from the vehicles is mainly: …
The ordinary and general type of coke is:
Question The ordinary and general type of coke is: (a) …
The percentage content of carbon is found to be maximum in:
Question The percentage content of carbon is found to be …