Atomic mass of an atom is present in the __________?

Related Mcqs:

1. Atom with higher atomic number produces X-rays of__________________?

   A. Shorter wavelength B. Larger wavelength C. X-ray not produced D. All are possible...

2. The atomic radii decreases by increasing atomic number in________________?

   A. Alkali metal B. Alkaline earth metal C. Elements from Li to Ne D. Halogens...

3. The number of isotopes of elements with even mass number and even atomic number are ________________?

   A. 280 B. 300 C. 154 D. 54...

4. The atoms of same element having same atomic number but different mass number are called____________________?

   A. Isobars B. Isomers C. Isotopes D. Isotropes...

5. The number of atoms present in 21.6 gram of silver (atomic weight = 108) are same as the molecules in__________?

   A. 1.8 gram of H2O B. 12 moles of KMnO4 C. 0.6N H2SO4 D. 4.6 gram of C2H5OH Submitted by: Muhammad Ali Kunbhar...

6. Mass spectrometer is used to determine Mass number of isotopes and___________________?

   A. Atomic number B. Relative abundance C. Electronic configuration D. All of the above...

7. A sample of an iron and oxygen ore has a mass of 35.8 grams. The iron in the compound has a mass of 27.9 grams. What is the percent iron in the ore?

   A. 74% Fe B. 75% Fe C. 77% Fe D. 78% Fe Submitted by: Muhammad Ali Kunbhar...

8. The valency of carbon Atom is __________ ?

   A. 1 B. 2 C. 3 D. 4 Submitted by: Rashid Mehmood...

9. In water, Hydrogen is present ________by mass.

   A. 22% B. 11.11% C. 31.13% D. 15.15% Submitted by: Aamir khan Hullio...

10. The maximum mass is present in 1dm3 for the following gas at STP.

    A. C3H8 B. CO2 C. CO D. CS2 Submitted by: Aamir khan Hullio...