BITSAT · Chemistry
Classification of Elements and Periodicity in Properties
23 practice questions for BITSAT — 21 easy · 2 medium · 0 hard. Every question is graded instantly with a step-by-step solution when you miss it.
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MCQ
Which one of the following arrangements represents the correct order of electron gain enthalpy (with negative sign) of the given atomic species?
MCQ
Consider the following radioactive decays I. $U92\overset{-\alpha\,}{\longrightarrow\,}_{90}\mathrm{Th}$and II. $_{90}\mathrm{Th}\overset{-\alpha\,}{\longrightarrow\,}\mathrm{Ra}88$ In which case group of parent and…
MCQ
Which one of the following ions has the highest value of ionic radius?
MCQ
The ionic radii in $(Ã...)$ of $\mathrm{N}^{3-}, \mathrm{O}^{2-}$ and $\mathrm{F}^{-}$are respectively?
MCQ
Electron affinity is positive, when
MCQ
How many elements are there in $6^{\text {th }}$ period of periodic table?
MCQ
Element with electronic configuration $1 s^2 2 s^2 2 p^6$ $3 s^2 3 p^6 3 d^{10} 4 s^2 4 p^6 4 d^{10} 5 s^2 5 p^3$ belongs to the following group of the periodic table
MCQ
Arrange the following ions in the order of decreasing $\mathrm{X}-\mathrm{O}$ bond length, where $\mathrm{X}$ is the central atom
MCQ
The correct order of acidic strength :
MCQ
Consider the following radioactive decays I. $U92{\vec{⟶}}_{90}\text{Th}$ and II. ${}_{90}\text{Th} \vec{⟶}\text{Ra} 88$ In which case group of parent and daughter elements remains unchanged.
MCQ
Two elements $A$ and $B$ have electronegativities $1\cdot 2$ and $3\cdot 0$ respectively. The nature of bond between $A$ and $B$ would be
MCQ
The decreasing order of the ionization potential of the following elements is