Question 11 MarkA group of two or more non-metals which have negative charge is called a radical.AnswerfalseView full question & answer→
Question 21 MarkThe positively charged particle within the nucleus of an atom is called neutron.AnswerfalseView full question & answer→
Question 31 MarkThe smallest unit of a pure substance which always exists independently and can retain all the physical and chemical properties of that substance is called a molecule.AnswertrueView full question & answer→
Question 41 MarkThe symbol of sulphate radical is $\text {SO}3 ^2-.$AnswerfalseView full question & answer→
Question 51 MarkAn ion formed by the acceptance of one electron in the outermost shell is monovalent electronegative.AnswertrueView full question & answer→