AP EAMCET · Chemistry · Classification of Elements and Periodicity in Properties
Consider the following two statements
\(Statement I:\) Among \(\mathrm{Mg}, \mathrm{Al}, \mathrm{Mg}^{2+}, \mathrm{Al}^{3+}\) the one having smallest size is \(\mathrm{Al}^{3+}\)
\(Statement II:\) Eu is having exceptionally high atomic radii among lanthanide elements
The correct answer is
- A Both statements I and II are correct
- B Both statements I and II are not correct
- C Statement I is correct but statement II not correct
- D Statement I is not correct but statement II is correct
Answer & Solution
Correct Answer
(C) Statement I is correct but statement II not correct
Step-by-step Solution
Detailed explanation
\(\mathrm{Al}\) atom is smaller than \(\mathrm{Mg}\) atom as \(\mathrm{Al}\) lies to the right of \(\mathrm{Mg}\) and it has greater effective nuclear charge. A cation is smaller than its parent atom so \(\mathrm{Al}^{3+}\) is smaller than \(\mathrm{Al}\) and therefore…
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
- If uncertainty in position and momentum of an electron are equal, then uncertainty in its velocity isAP EAMCET 2024 Easy
- The weight in grams of a non-volatile solute (mol. wt. 60) to be dissolved in \(90 \mathrm{~g}\) of water to produce a relative lowering of vapour pressure of 0.02 isAP EAMCET 2012 Easy
- Consider the following changes I and II
The correct statements about these changes (I) and (II) in accordance with MO theory are
A)In (I) bond order increases by 0.5 from the existing value
B)In (II) bond order decreases by 1.0 from the existing value
C) In both (I) and (II) magnetic property is not changed
D) In both (I) and (II) magnetic property is changedAP EAMCET 2025 Medium - The adsorption of a gas at the boiling point of the gas follows the isotherm shown in the figure. Identify the correct thermodynamic properties at point \(C\).
AP EAMCET 2021 Medium - Which one of the following statements is not correct?AP EAMCET 2017 Easy
- What is the osmotic pressure (in atm) of \(0.02 \mathrm{M}\) aqueous glucose solution at \(300 \mathrm{~K}\) ?
\(\left(\mathrm{R}=0.082 \mathrm{~L} \mathrm{~atm} \mathrm{~mol}{ }^{-1} \mathrm{~K}^{-1}\right)\)AP EAMCET 2023 Medium
More PYQs from AP EAMCET
- Which of the following statement is incorrect?
(i) \(\mathrm{NaCl}\) being an ionic compound is a good conductor of electricity in the solid state.
(ii) In canonical structures there is no difference in the arrangement of atoms.
(iii) Hybrid orbitals form stronger bonds than pure orbitals.
(iv) VSEPR theory can explain the square planar geometry of \(\mathrm{XeF}_4\).AP EAMCET 2020 Medium - Suitable conditions to prepare hexachlorobenzene from benzene is/areAP EAMCET 2020 Easy
- If aqueous solution contains \(9 \%\) and \(1 \%\) \((w / w)\) of two non-volatile non-electrolytes \(X\) (molecular weight 180) and \(Y\) (molecular weight 50) respectively, the boiling point of solution in \({ }^{\circ} \mathrm{C}\) approximately is \(\left(K_b=0.52 \mathrm{~K} \mathrm{~kg} \mathrm{~mol}^{-1}\right)\)AP EAMCET 2019 Hard
- The coordinates of the point \(P\) on the curve \(x=a(\theta+\sin \theta), y=a(1-\cos \theta)\), where the tangent is inclined at an angle \(\frac{\pi}{4}\) to \(x\)-axis, areAP EAMCET 2012 Easy
- If is a function defined on by , then is equal to ([.] greatest integer function)AP EAMCET 2021 Medium
- A \(0.6 \%\) solution for urea (molecular mass \(=60)\) would be isotonic withAP EAMCET 2021 Easy