1
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MCQ (Single Correct Answer)
+4
-1
If we consider that 1/6, in place of 1/12, mass of carbon atom is taken to be the relative atomic mass unit, the mass of one mole of the substance will
2
AIEEE 2004
MCQ (Single Correct Answer)
+4
-1
6.02 $$\times$$ 1020 molecules of urea are present in 100 ml of its solution. The concentration of urea solution is
(Avogadro constant, NA = 6.02 $$\times$$ 1023 mol-1)
(Avogadro constant, NA = 6.02 $$\times$$ 1023 mol-1)
3
AIEEE 2004
MCQ (Single Correct Answer)
+4
-1
To neutralise completely 20 mL of 0.1 M aqueous solution of phosphorous acid (H3PO3), the volume of 0.1 M aqueous KOH solution required is
4
AIEEE 2004
MCQ (Single Correct Answer)
+4
-1
The ammonia evolved from the treatment of 0.30 g of an organic compound for the estimation of nitrogen was passed in 100 mL of 0.1 M sulphuric acid. The excess of acid required 20 mL of 0.5 M sodium hydroxide solution for complete neutralization. The organic compound is
Questions Asked from Some Basic Concepts of Chemistry (MCQ (Single Correct Answer))
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