Pak Navy Initial Test Past Papers MCQS Solved pdf

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PPSC Lecturer Chemistry MCQs Sample Past Papers

PPSC Lecturer Chemistry MCQs Sample Past Papers,Model Papers Lecturer Chemistry,Lecturer Chemistry Past Papers Practice Tests Q.1 The elements of IIIA to VIIIA subgroups except He are known as __________ block elements. p Q.2 Concentrated nitric acid gives __________ when it reacts with tin. Ammonium nitrite Q.3 Sulphuric acid is used to manufacture HCl and 2COOH. … Read more

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