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In this quiz, you will find questions related to the basic concepts of chemistry including composition, structure, and properties of matter around us.
As, per the current system, carbon-12 has been taken as the standard for measuring atomic masses.
What is the mass of hydrogen in terms of amu?
What is the abbreviation of amu?
Nowadays, “amu” is replaced by ____
A sample of carbon that contains 70% carbon-12 and 30% carbon-14. What do you think is the average atomic mass of this sample?
Elements X and Y combine to form two compounds XY and X2Y. Find the atomic weight of X and Y, if the weight of 0.1 moles of XY is 10g and 0.05 moles of X2Y is 9g
Which one will have maximum numbers of water molecules?
Find the volume of O2 required to burn 1 L of propane completely, measured at 0℃ temperature and 1 atm pressure
The number of moles present in 6 gms of carbon is:
The -ve charged particles is called:
Which is not a unit of pressure:
What is the normality of a 1 M solution of H3PO4
Which of the following is an example of a heterogeneous substance?
Which of the following statements about a compound is incorrect?
Which one of these is not a pure compound?
Difference in density is the basis of
Gravity separation
Molecular sieving
Ultrafiltration
Molecular attraction
Under the Same Conditions, Nitrogen and Oxygen are Taken in the Same Mass. The Ratio of Their Volumes will be ____.
7 : 8
9 : 2
5 : 6
3 : 5
What is the concentration of nitrate ions if equal volumes of 0.1 M AgNO3 and 0.1 M NaCl are mixed together
0.1 N
0.2 M
0.05 M
0.25 M
The number of atoms present in 0.1 moles of a triatomic gas is
1.806 × 10^23
1.806 × 10^22
3.600 × 10^23
6.026 × 10^22
A gas X has Cp and Cv ratio as 1.4, at NTP 11.2 L of gas X will contain_______ number of atoms.
1.2 × 10^23
3.01 × 10^23
2.01 × 10^23
6.02 × 10^23
