Chemistry
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The set representing the correct order of first ionisation potential is
Answer: B. Be>Mg>Ca The set representing the correct order of first ionisation potential is Be>Mg>Ca.
Answer: B. Be>Mg>Ca
See lessThe set representing the correct order of first ionisation potential is Be>Mg>Ca.
Which pair of atomic numbers represents s-block elements?
Answer: D. 3,12 The pair 3,12 of atomic number represents s-block elements.
Answer: D. 3,12
See lessThe pair 3,12 of atomic number represents s-block elements.
How do the ionisation energies of the group elements vary?
Answer: B. Decrease down the group The ionisation energies of the first group elements vary decrease down the group.
Answer: B. Decrease down the group
The ionisation energies of the first group elements vary decrease down the group.
See lessOut of C, N, O and S the smallest size is of:
Answer: A. O Out of C, N, O and S, the smallest size is of O.
Answer: A. O
See lessOut of C, N, O and S, the smallest size is of O.
The diagonal partner of element B is
Answer: C. Si The diagonal partner of element B is Si.
Answer: C. Si
See lessThe diagonal partner of element B is Si.
Among these intensive property is
Answer: C. Surface tension Among these intensive property is surface tension.
Answer: C. Surface tension
See lessAmong these intensive property is surface tension.
The enthalpy change for the reaction does not depends upon the
Answer: C. Nature of intermediate reaction steps The enthalpy change for the reaction does not depends upon the nature of intermediate reaction steps.
Answer: C. Nature of intermediate reaction steps
See lessThe enthalpy change for the reaction does not depends upon the nature of intermediate reaction steps.
For a spontaneous process, the correct statement is
Answer: D. Total entropy change is always negative For a spontaneous process, the correct statement is total entropy change is always negative.
Answer: D. Total entropy change is always negative
See lessFor a spontaneous process, the correct statement is total entropy change is always negative.
The second law of thermodynamics states that in a cyclic process :
Answer: D. Heat cannot be completely converted into work The second law of thermodynamics states that in a cyclic process heat cannot be completely converted into work.
Answer: D. Heat cannot be completely converted into work
See lessThe second law of thermodynamics states that in a cyclic process heat cannot be completely converted into work.
Three moles of an ideal gas is expanded spontaneously into vaccum. The work done will be:
Answer: D. Zero Three moles of an ideal gas is expanded spontaneously into vaccum. The work done will be zero.
Answer: D. Zero
See lessThree moles of an ideal gas is expanded spontaneously into vaccum. The work done will be zero.