Master cadre:-chemistry daily quiz

some basic concepts of chemistry




Q1. What will be the molarity of of a solution which contains 5.85 g of NaCl(s) per 500 mL
(a) 4mol per litre
(b) 20 mol per litre
(c) 0.2 mol per litre
(d) 2 mol per litre

Q2. The compound contain 8% of sulphur the minimum molecular weight of the compound is
(a)100
(b)200
(c)350
(d)400

Q3.which of the following methods of expressing concentration varies with temperature
(a) molality
(b) weight percent
(c) normality
(d) molarity

Q4. Which of the following concentration terms is/are independent of temperature?
(a) molality only
(b) molality and mole fraction
(c) molarity and mole fraction
(d) molality and normality

Q5. 80 gram of oxygen contains as many atoms as in
(a) 10 gram of hydrogen
(b) 5 g of hydrogen
(c) 80 gram of hydrogen
(d) man gram of hydrogen



Answers

1(c)
2.(d)
3.(c),(d)
4.(b)
5.(b)

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