JEE Mains · Chemistry · STD 11 - 3. Classification of elements and periodicity in properties
Which of the following electronegativity order is incorrect?
- A \(\mathrm{Mg} \lt \mathrm{Be} \lt \mathrm{B} \lt \mathrm{N}\)
- B \(\mathrm{S} \lt \mathrm{Cl} \lt \mathrm{O} \lt \mathrm{F}\)
- C \(\mathrm{Al} \lt \mathrm{Si} \lt \mathrm{C} \lt \mathrm{N}\)
- D \(\mathrm{Al} \lt \mathrm{Mg} \lt \mathrm{B} \lt \mathrm{N}\)
Answer & Solution
Correct Answer
(D) \(\mathrm{Al} \lt \mathrm{Mg} \lt \mathrm{B} \lt \mathrm{N}\)
Step-by-step Solution
Detailed explanation
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
- Consider the following molecules/species:

\((x)\) tropone, \((y)\) acetone, \((z)\) acetate ion
The correct order of carbon – oxygen double bond length is:JEE Mains 2026 Medium - If 50 mL of 0.5 M oxalic acid is required to neutralise 25 mL of NaOH solution, the amount of NaOH in 50 mL of given NaOH solution is __________ g.JEE Mains 2024 Medium
- Four successive members of the first row transition elements are listed below with atomic numbers. Which one of them is expected to have the highest \(E^o_{M^{3+} /M^{2+}}\) value ?JEE Mains 2013 Medium
- The correct increasing order of spin-only magnetic moment values of the complex ions
\([MnBr_{4}]^{2-}\) (A), \([Cu(H_{2}O)_{6}]^{2+}\) (B), \([Ni(CN)_{4}]^{2-}\) (C) and \([Ni(H_{2}O)_{6}]^{2+}\) (D) is:JEE Mains 2026 Medium - The number of correct statements from the following is : \(A.\) \(E _{\text {cell }}\) is an intensive parameter. \(B.\) A negative \(E^{\Theta}\) means that the redox couple is a stronger reducing agent than the \(H ^{+} / H _2\) couple. \(C.\) The amount of electricity required for oxidation or reduction depends on the stoichiometry of the electrode reaction. \(D.\) The amount of chemical reaction which occurs at any electrode during electrolysis by a current is proportional to the quantity of electricity passed through the electrolyte.JEE Mains 2023 Hard
- Which one of the following equations does not correctly represent the first law of thermodynamics for the given processes involving an ideal gas? (Assume non -expansion work is zero)JEE Mains 2019 Hard
More PYQs from JEE Mains
- Let the position vectors of the points \(A , B , C\) and \(D\) be \(5 \hat{i}+5 \hat{j}+2 \lambda \hat{k}, \hat{i}+2 \hat{j}+3 \hat{k},-2 \hat{i}+\lambda \hat{j}+4 \hat{k}\) and \(-\hat{ i }+5 \hat{ j }+6 \hat{ k }\). Let the set \(S =\{\lambda \in R\) : The points \(A\), \(B , C\) and D are coplanar \(\}\). Then \(\sum_{\lambda \in S}(\lambda+2)^2\) is equal toJEE Mains 2023 Hard
- Calculate the value of mean free path \((\lambda)\) for oxygen molecules at temperature \(27^{\circ}\, C\) and pressure \(1.01 \times 10^{5} \,Pa\). Assume the molecular diameter \(0.3 \,nm\) and the gas is ideal. \(\left( k =1.38 \times 10^{-23}\, J\,K ^{-1}\right)\) (in \(nm\))JEE Mains 2021 Hard
- The angle between vector \((\overrightarrow{{A}})\) and \((\overrightarrow{{A}}-\overrightarrow{{B}})\) is :
JEE Mains 2021 Hard - Which purification technique is used for high boiling organic liquid compound (decomposes near its boiling point)?JEE Mains 2021 Medium
- Let \(S=\{z \in C :|z-3| \leq 1\) and \(z(4+3 i)+\bar{z}(4-3 i) \leq 24\}\). If \(\alpha+i \beta\) is the point in \(S\) which is closest to \(4 i\), then \(25(\alpha+\beta)\) is equal toJEE Mains 2022 Hard
- The \(IUPAC\) name of the complex \(\left[\mathrm{Pt}\left(\mathrm{NH}_{3}\right)_{2} \mathrm{Cl}\left(\mathrm{NH}_{2} \mathrm{CH}_{3}\right)\right] \mathrm{Cl}\) isJEE Mains 2020 Medium