MCQ
Why do elements in the same group have similar physical and chemical properties?
- ABecause of same electronic configuration.
- BBecause of same number of electrons.
- CBecause of same number of protons.
- ✓Because of same valence electrons.
✓
Answer
Correct option: D.
Because of same valence electrons.
Need a full question paper?
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Explore more
Similar questions
In $O_2^ - ,$ ${O_2}$ and $O_2^{ - 2}$ molecular species, the total number of antibonding electrons respectively are
→In qualitative analysis, the metals of group $I$ can be separated from other ions by precipitating them as chloride salts. A solution initially contains $Ag^+$ and $Pb^{2+}$ at a concentration of $0.10 \,M.$ Aqueous $HCl$ is added to this solution until the $Cl^-$ concentration is $0.10\, M.$What will the concentrations of $Ag^+$ and $Pb^{2+}$ be at equilibrium ? ($K_{sp}$ for $AgCl = 1.8 \times 10^{-10},$$ K_{sp}$ for $PbCl_2 = 1.7 \times 10^{-5}$)
→Compound $(C)$ in above sequence of reaction is
→$pH$ values of $HCl$ and $NaOH$ solutions each of strength $\frac{N}{{100}}$ will be respectively
→In a compound $C, H, N$ atoms are present in $9 : 1 : 3.5$ by weight. Molecular weight of compound is $108$ . Its molecular formula is
→Aluminium chloride exists as a dimer, $Al_2Cl_6,$ in solid state as well as in solution of non-polar solvents such as benzene. When dissolved in water, it gives:
→Product $(A)$ is
→Internal energy is
When one mole of monoatomic ideal gas at $T \,K $ undergoes adiabatic change under a constant external pressure of $1 \,atm$ changes volume from $1$ litre to $2$ litre. The final temperature in Kelvin would be
→Which of the following will be the final product when ${C_2}{H_2}$ reacts with $HCl$
→