Why does a black board appears black in colour?
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Select the word with the correct spelling.
Which of the following molecules is joined by a double covalent bond?
Which of the following elements has the lowest melting point?
In the following question, out of the four alternatives, select the word opposite in meaning to the word given.Commiserate
Which one of the following is not an instrument of credit control in India?
Who Invented Internet Protocol?