Question
Arya-siddhanta is written by which of the
following?Solution
Aryabhata, a noted mathematician-astronomer of the Gupta period proposed that the earth is round and rotates about its own axis. His famous works are Aryabhatiya and the Arya-siddhanta.
The Polymerisation of which of the following is used in the manufacturing of polythene in industry?
What is dehydration?Â
What is heavy water?
In the synthesis of aspirin (acetylsalicylic acid) from salicylic acid, which reagent is used?
Which radioactive element is used in heart pacemakers?
The device that converts AC into DC is:
On a clean glass plate, a drop of water spreads to form a thin layer whereas a drop of mercury remains almost spherical because:
Which of the following statement regarding Rutherford nuclear model is NOT correct?
Which of the following organic compounds undergo nucleophilic substitution reaction most easily?
Ethane gas has a slightly _____ taste.
Relevant for Exams:
