Periodic Table And Periodicity - Inorganic Chemistry - Chemistry Previous Year Questions

Identify amphoteric oxide from following.

Which among the following oxides is acidic in nature?

Identify the use of mixture of \(\mathrm{Ar}\) and \(\mathrm{N}_2\) from following.

Which element from following is a soft element?

Which from following is a CORRECT decreasing order of ionization enthalpies of different elements?

What is the position of transition elements from \(\mathrm{Sc}\) to \(\mathrm{Zn}\) in long form of periodic table?

Which from following elements belongs to group 17 of periodic table?

What is the position of copper in long form of periodic table?

Which from following is a correct decreasing order of ionisation enthalpy for different elements?

Which from following series of elements is correctly arranged according to their decreasing order of ionisation enthalpy \(\left(\mathrm{IE}_1\right)\) ?

Identify FALSE statement from following.

Identify the element having positive electron gain enthalpy.

Which group elements from following are called as chalcogens?

Identify the element having general electronic configuration \(\mathrm{ns}^2 \mathrm{np}^4\) from following.

If four different elements A, B, C and D having electronic configuration as $\mathrm{A}=[\mathrm{Ne}] 3 \mathrm{~s}^2 3 \mathrm{p}^4$, $B=[\mathrm{Ne}] 3 \mathrm{~s}^2 3 \mathrm{p}^5, \mathrm{C}=[\mathrm{Ar}] 3 \mathrm{~d}^{10} 4 \mathrm{~s}^2 4 \mathrm{p}^4$ and $\mathrm{D}=[\mathrm{Ar}] 3 \mathrm{~d}^{10} 4 \mathrm{~s}^2 4 \mathrm{p}^5$.

Identify the element with largest atomic radius.

Which element from following has largest atomic size as compared to other three?

Which of the following elements belongs to second group and fifth period of periodic table?

Identify the element with lowest electronegativity.

Which of the following elements belongs to first group and fifth period of periodic table?

What is the value of electronegativity of oxygen?