MHT CET · Chemistry · Structure of Atom
Identify the element if it's expected electronic configuration is \([\mathrm{Ar}] 3 \mathrm{~d}^{10} 4 \mathrm{~s}^{2}\).
- A \(\mathrm{Hg}\)
- B Co
- C \(\mathrm{Cd}\)
- D \(\mathrm{Zn}\)
Answer & Solution
Correct Answer
(D) \(\mathrm{Zn}\)
Step-by-step Solution
Detailed explanation
\([\mathrm{Ar}] 3 \mathrm{~d}^{10} 4 \mathrm{~s}^{2} \rightarrow \mathrm{Z}=30(\mathrm{Zn})\)
See the Complete Solution
Get step-by-step explanations for this and 2.5 Lakh+ more JEE, NEET & CET questions.
- Unlock all solutions
- Practice the full chapter
- Track accuracy across PYQs
4.8 rated on Google Play · 14,000+ reviews
More questions from Chemistry
- Which among the following is used as refrigerants and for air conditioning?MHT CET 2020 Easy
- What is molar conductivity at zero concentration in \(\Omega^{-1} \mathrm{~cm}^2 \mathrm{~mol}^{-1}\) for aluminium sulphate, if molar ionic conductivities at zero concentration of \(\mathrm{Al}^{+3}\) and \(\mathrm{SO}_4^{-2}\) are \(189 \Omega^{-1} \mathrm{~cm}^2 \mathrm{~mol}^{-1}\) and \(50 \cdot 1 \Omega^{-1} \mathrm{~cm}^2 \mathrm{~mol}^{-1}\) respectively?MHT CET 2025 Easy
- What is the oxidation state and coordination number of platinum respectively in \(\left[\mathrm{Pt}\left(\mathrm{NH}_{3}\right)_{6}\right]^{4+}\) ?MHT CET 2020 Easy
- The unit of atomic mass, amu is replaced by \(\mathrm{u}\), here u stands forMHT CET 2020 Easy
- Identify the product formed by the action of \(\mathrm{H}_{2(\mathrm{~g})}\) with \(\mathrm{CO}_{(\mathrm{g})}\) in presence of \(\mathrm{Ni}\).MHT CET 2023 Easy
- The rate for reaction \(2 \mathrm{~A}+\mathrm{B} \rightarrow\) product is \(6 \times 10^{-4} \mathrm{~mol} \mathrm{dm}^{-3} \mathrm{~s}^{-1}\) Calculate the rate constant if the reaction is first order in \(\mathrm{A}\) and zeroth order in B. \([\operatorname{Given}[\mathrm{A}]=[\mathrm{B}]=0.3 \mathrm{M}]\)MHT CET 2023 Medium
More PYQs from MHT CET
- If C is a given non-zero scalar and \(\overline{\mathrm{A}}\) and \(\overline{\mathrm{B}}\) are given non-zero vectors such that \(\overline{\mathrm{A}}\), is perpendicular to \(\overline{\mathrm{B}}\). If vector \(\overline{\mathrm{X}}\) is such that \(\overline{\mathrm{A}} \cdot \overline{\mathrm{X}}=\mathrm{C}\) and \(\overline{\mathrm{A}} \times \overline{\mathrm{X}}=\overline{\mathrm{B}}\) then \(\overline{\mathrm{X}}\) is given byMHT CET 2024 Easy
- ' \(F\) ' is the force between the two identical charged particles placed at a distance ' \(\mathrm{Y}\) ' from each other. If the distance between the charges is reduced to half the previous distance, then force between them becomesMHT CET 2021 Easy
- If \(x^k+y^k=a^k(a, k>0)\) and \(\frac{d y}{d x}+\left(\frac{y}{x}\right)^{\frac{1}{b}}-0\), then \(\mathrm{k}\) has the valueMHT CET 2023 Medium
- To get output of the following logic circuit as ' 0 ' (zero), the inputs \(\mathrm{A}, \mathrm{B}\), C should NOT be, respectively,
MHT CET 2025 Medium - Identify the bond order and magnetic nature of - \(\mathrm{Li}_2\) mólecule respectively.MHT CET 2024 Easy
- If \((\bar{a} \times \bar{b}) \times \bar{c}=-5 \bar{a}+4 \bar{b}\) and \(\bar{a} \cdot \bar{b}=3\), then the value of \(\bar{a} \times(\bar{b} \times \bar{c})\) isMHT CET 2023 Medium