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

Related Mcqs:

1. 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

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

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

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

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

4. Isotopes are atoms having the same _____________________?

   A. Mass number
   B. Number of neutrons
   C. Atomic mass
   D. None of these

5. 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

6. The earth’s atmosphere is an envelope of gases present upto a height of about ______________ kms?

   A. 10
   B. 200
   C. 1000
   D. 2000

7. Nitrogen oxides (NOx) is not produced in the ______________ industry?

   A. Nitric acid making
   B. Nitrogenous fertiliser
   C. Detergent
   D. Any of these

8. Noise level during normal conversation among men is about ______________ decibels?

   A. 10
   B. 45
   C. 90
   D. 115

9. The chemical potential of any constituent of an ideal solution depends on the ______________ of the solution?

   A. Temperature
   B. Pressure
   C. Composition
   D. All (A), B. and (C)

10. If the pressure on 100 c.c. of air is halved, then its volume (at the same temperature) would be ______________ c.c?

    A. 100
    B. 50
    C. 205
    D. 200