In an eutectic system, two elements are completely____________________?

Related Mcqs:

1. If a solution of eutectic composition is cooled, _______________ reaching the eutectic temperature ?

   A. The solvent begins to freeze out even before
   B. It will undergo no change until
   C. It will not solidify even on
   D. None of these

2. Eutectic reaction for iron-carbon system occurs at a temperature of _______________ °C ?

   A. 723
   B. 959
   C. 1147
   D. 1493

3. The temperature at the eutectic point of the system is the _____________ temperature that can be attained in the system?

   A. Lowest
   B. Highest
   C. Average
   D. None of these

4. The amount of heat required to decompose a compound into its elements is _____________ the heat of formation of that compound from its elements?

   A. Less than
   B. More than
   C. Same as
   D. Not related to

5. Heat requirement for decomposition of a compound into its elements is _____________ that is evolved during the formation of that compound from its elements?

   A. The same
   B. Less than
   C. Greater than
   D. Different than

6. Referring to the periodic table of elements, it is found that with increasing atomic number. The atomic size in the same___________________?

   A. Period increases
   B. Period decreases
   C. Group increases
   D. Both ‘B’ & ‘C’

7. Elements in a periodic table are arranged in order of their__________________?

   A. Atomic number
   B. Mass number
   C. Atomic weight
   D. Metallic characteristics

8. “The heat capacity of a solid compound is approximately equal to the sum of the heat capacities of the constituent elements.” This is the statement of___________________?

   A. Law of Petit and Dulong
   B. Kopp’s rule
   C. Nernst heat theorem
   D. Trouton’s rule

9. Molar heat capacity of water in equilibrium with ice at constant pressure is_____________________?

   A. 0
   B. ∞
   C. 1
   D. None of these

10. The accumulation in a steady state combustion process, burning 1 kg mole of carbon with 1 kg mole of oxygen thereby producing 1 kg mole of carbon dioxide, is _____________ kg mole?

    A. 1
    B. 0
    C. 16
    D. 44