Isotopes are atoms having the same _____________________?

Related Mcqs:

1. Refractory bricks having lower porosity have _____________________?

   A. High insulating properties
   B. Low heat capacity
   C. Low thermal conductivity
   D. Greater strength

2. Atoms of the same element, but of different masses are called__________________?

   A. Isobars
   B. Isotones
   C. Isotopes
   D. None of these

3. The total number of atoms in 8.5 gm of NH3 is _______________ × 1023?

   A. 9.03
   B. 3.01
   C. 1.204
   D. 6.02

4. A solution having a pH value of 5 is less acidic than the one having a pH value of 2 by a factor of ________________?

   A. 3
   B. 100
   C. 1000
   D. None of these

5. In an amorphous material, atoms defy any definite atomic structure and exist in random pattern just like in liquid. Which of the following is an amorphous material ?

   A. Tin
   B. Lead
   C. Zinc
   D. Glass

6. There are one octahedral void and ______________ tetrahedral void in the closest packing of atoms ?

   A. One
   B. Two
   C. Three
   D. None of these

7. Neutrons are present in all atoms except that of ___________________?

   A. He
   B. C
   C. H
   D. Ar

8. The number of atoms of oxygen present in 11.2 litres of ozone (O3) at N.T.P. are__________________?

   A. 3.01 × 1022
   B. 6.02 × 1023
   C. 9.03 × 1024
   D. 1.20 × 1024

9. With increase in temperature, the surface tension of water _____________________?

   A. Increases
   B. Decreases
   C. Remain constant
   D. Increases linearly

10. With increase in the solute concentration, the specific heat of aqueous solutions _____________________?

    A. Increases
    B. Decreases
    C. Remains unchanged
    D. Either A. or B.; depends on the type of solution