The hardest of the following solids is__________________?

Related Mcqs:

1. Which solids are called true solids _______________?

   A. Metallic
   B. Amorphous
   C. Crystalline
   D. Vitreous

2. Which of the following solids show anisotropy___________________?

   A. Plastic
   B. Glass
   C. Rubber
   D. None of the above

3. In solids the temperature is the measure of__________________?

   A. Average kinetic energy of molecules
   B. Vibrational kinetic energy
   C. Translational kinetic energy
   D. None of the above

4. Crystalline solids can be identified easily from their ___________________?

   A. Sharp melting point
   B. Definite geometry
   C. Transition temperature
   D. Colour

5. The viscosity of solids is________________?

   A. Infinite
   B. Negligible
   C. Medium
   D. No concept of viscosity in solid

6. Direct conversion of solids into vapours is called ___________________?

   A. Solvent extraction
   B. sublimation
   C. crystallization
   D. vaporization

7. Consider the following redox reaction. Zn+dil HNO3? Zn (NO3)2 + N2O + H2O The coefficient number of HNO3 in the equation is__________________?

   A. 6
   B. 8
   C. 10
   D. 4

8. The number of moles of CO2 which contains 16 g of oxygen is__________________?

   A. 0.25
   B. 0.5
   C. 0.75
   D. 1

9. A solution has pH = 0 its H+ ion concentration is__________________?

   A. 1 x 10-1
   B. 1 x 10-14
   C. 1 x 10-7
   D. 1

10. The unit of molality is__________________?

    A. moles dm-3
    B. moles kg-1
    C. gram dm-3
    D. none