Master cadre:-good night qes

Q1. Which of the following terms are unitless?
(a) molality
(b) molarity
(c) mole fraction
(d) mass per cent

Q2. How many  moles of sucrose are in tablespoon of sugar that contains 3.26 gram?
(a)0.00953
(b)0.053
(C)0.0039
(d)0.0953

Q3. Which of the following statements about a compound  is incorrect?
(a)a molecule of a compound has atoms of different elements.
(b)a compound cannot be separated into its constituent elements by physical method of separation.
(c) a compound retains the physical properties of its constituent elements
(d) the ratio of atoms of different elements in a compound is fixed.

Q4. One of the statements of Dalton atomic theory is given below
"Compounds are formed when atoms of different elements combine in a fixed ratio."
Which of the following laws is not related to this statement
(a) law of conservation of mass
(b) law of definite proportion
(c) law of multiple proportions
(d) avogadro law

Q5. What is the the mass percent of carbon in carbon dioxide?
(a)0.034%
(b)27.27%
(c)3.4%
(d)28.7%

Answers 
1(c)&(d)
2(a)
3(c)
4(a)&(d)
5(b)

For vedio lecture:-https://youtu.be/2oZ53G0NK3Q

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