Chemistry
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Which of the following pairs has similarities in their properties
Answer: Both B and D The following pairs has similarities in their properties both Mo, W and Nb, Ta.
Answer: Both B and D
See lessThe following pairs has similarities in their properties both Mo, W and Nb, Ta.
Which two elements in the periodic table would you expect to combine in the most violent fashion?
Answer: A. Cs and F The two elements Cs and F in the periodic table would you expect to combine in the most violent fashion.
Answer: A. Cs and F
See lessThe two elements Cs and F in the periodic table would you expect to combine in the most violent fashion.
Among the following, the elements of highest first ionisation enthalpy is:
Answer: E. Ne Among the following, the elements of highest first ionisation enthalpy is Ne.
Answer: E. Ne
See lessAmong the following, the elements of highest first ionisation enthalpy is Ne.
Which of the following is not a periodic property?
Answer: D. Atomic mass The following atomic mass is not a periodic property.
Answer: D. Atomic mass
See lessThe following atomic mass is not a periodic property.
Which of the following atoms has the highest First ionisation energy?
Answer: D. Sc The following Sc atoms has the highest first ionisation energy.
Answer: D. Sc
See lessThe following Sc atoms has the highest first ionisation energy.
Increasing in atomic size down the group is due to:
Answer : A. Increase in the number of electrons Increase in atomic size down the group is due to increase in the number of electrons.
Answer : A. Increase in the number of electrons
See lessIncrease in atomic size down the group is due to increase in the number of electrons.
Which of the following has lowest ionisation energy?
Answer: D. Sulphur The following sulphur has lowest ionisation energy.
Answer: D. Sulphur
See lessThe following sulphur has lowest ionisation energy.
Pauling electronegativity scale is based on experimental value of
Answer: A. Bond energies Pauling electronegativity scale is based on experimental value of bond energies.
Answer: A. Bond energies
See lessPauling electronegativity scale is based on experimental value of bond energies.
Which of the following is the most electronegative elements?
Answer: D. Fluorine Fluorine is the most electronegative element.
Answer: D. Fluorine
See lessFluorine is the most electronegative element.
The increasing order of the first ionisation enthalpies of elements B, P, S and F is:
Answer: C. B<S<P<F The increasing order of the first ionisation enthalpies of elements B, P, S and F is B<S<P<F.
Answer: C. B<S<P<F
See lessThe increasing order of the first ionisation enthalpies of elements B, P, S and F is B<S<P<F.