Which among the following is the most electronegative element?
Flourine is the most electro negative element due to its small atomic radius .It also has the tendency to accept an electron to complete octet configuration
The percentage of nitrogen in the air is about
Methane contributes towards global warming so it is called a _________________ gas.
Which of the following is a metal?
Which of the following group is NOT Dobereiner Triads?
Safety matches contain
Air ___________________ are the substances which contaminate the air.
By using which foam the Researchers from Indian Institute of Technology – Bombay have made a low cost piezo resistive vibration sensor?
Which of the following is NOT a compound?
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