JEE Mains · Chemistry · STD 11 - 3. Classification of elements and periodicity in properties
The element having the highest first ionization enthalpy is _______.
- A \(\mathrm{Si}\)
- B \(\mathrm{Al}\)
- C \(\mathrm{N}\)
- D \(\mathrm{C}\)
Answer & Solution
Correct Answer
(C) \(\mathrm{N}\)
Step-by-step Solution
Detailed explanation
\(\mathrm{Al}<\mathrm{Si}<\mathrm{C}<\mathrm{N} ; \mathrm{IE}_1\) order.
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
- The enthalpy of combustion of propane, graphite and dihydrogen at \(298\,K\) are: \(-2220.0\,kJ\,mol ^{-1}\), \(393.5\,kJ mol ^{-1}\) and \(-285.8\,kJ\,mol ^{-1}\) respectively. The magnitude enthalpy of formation of propane \(\left( C _{3} H _{8}\right)\) is......... \(kJ\,mol\,{ }^{-1}\). (Nearest integer)JEE Mains 2022 Medium
- Total number of ions from the following with noble gas configuration is__________. \( \mathrm{Sr}^{2+}(\mathrm{Z}=38), \mathrm{Cs}^{+}(\mathrm{Z}=55), \mathrm{La}^{2+}(\mathrm{Z}=57) \mathrm{Pb}^{2+} \) \( (\mathrm{Z}=82), \mathrm{Yb}^{2+}(\mathrm{Z}=70) \text { and } \mathrm{Fe}^{2+}(\mathrm{Z}=26)\)JEE Mains 2024 Hard
- The dihedral angle in staggered form of Newman projection of \(1,1,1-\)Trichloro ethane is degree. (Round off to the nearest integer)JEE Mains 2021 Hard
- The separation of two coloured substances was done by paper chromatography. The distances travelled by solvent front, substance \(A\) and substance \(B\) from the base line are \(3.25\,cm .2 .08\) \(cm\) and \(1.05\,cm\). respectively. The ratio of \(R_{f}\) values of \(A\) to \(B\) is\(.........\)JEE Mains 2022 Medium
- Strong reducing and oxidizing agents among the following, respectively, areJEE Mains 2023 Medium
- A solution of m-chloroaniline, \(m-\)chlorophenol and \(\mathrm{m}\) -chlorobenzoic acid in ethyl acetate was extracted initially with a saturated solution of \(\mathrm{NaHCO}_{3}\) to give fraction \(\mathrm{A}\). The left over organic phase was extracted with dilute \(NaOH\) solution to give fraction \(\mathrm{B}\). The final organic layer was labelled as fraction \(\mathrm{C}\). Fractions \(\mathrm{A},\mathrm{B}\) and \(\mathrm{C},\) contain respectivelyJEE Mains 2020 Medium
More PYQs from JEE Mains
- Your friend is having eye sight problem. She is not able lo see clearly a distant uniform window mesh and it appears to her as non-uniform and distorted. The doctor diagnosed the problem asJEE Mains 2021 Medium
- Let \(y=y(x)\) be the solution of the differential equation, \(x y^{\prime}-y=x^{2}(x \cos x+\sin x), x>0\) If \(y (\pi)=\pi,\) then \(y ^{\prime \prime}\left(\frac{\pi}{2}\right)+ y \left(\frac{\pi}{2}\right)\) is equal toJEE Mains 2020 Hard
- A bowl filled with very hot soup cools from \(98^{\circ}\,C\) to \(86^{\circ}\,C\) in \(2\) minutes when the room temperature is \(22^{\circ}\,C\). \(..........\,minutes\) long it will take to cool from \(75^{\circ}\,C\) to \(69^{\circ}\,C\) ?JEE Mains 2023 Medium
- Let \(\mathrm{n}\) be an odd natural number such that the variance of \(1,2,3,4, \ldots, \mathrm{n}\) is \(14 .\) Then \(\mathrm{n}\) is equal to ..... .JEE Mains 2021 Medium
- Given \(E^o_{Cl_2/Cl^-} = 1.36\,V,\) \(E^o_{Cr^{3+}/Cr}= -0.74\,V,\) \(E^o_{Cr_2/O_7^{2-}/Cr^{3+}}=1.33\,V,\) \(E^o_{MnO^-_4/Mn^{2+}} = 1.51\,V\) Among the following, the strongest reducing agent isJEE Mains 2017 Medium
- Let the coefficients of the middle terms in the expansion of \(\left(\frac{1}{\sqrt{6}}+\beta x\right)^{4},(1-3 \beta x)^{2}\) and \(\left(1-\frac{\beta}{2} x\right)^{6}, \beta>0\), respectively form the first three terms of an \(A.P.\) If \(d\) is the common difference of this \(A.P.\), then \(50-\frac{2 d}{\beta^{2}}\) is equal to.JEE Mains 2022 Hard