JEE Mains · Chemistry · STD 11 - 3. Classification of elements and periodicity in properties
The correct order of electronegativity for given elements is:
- A \(C > P > At > Br\)
- B \(Br > P > At > C\)
- C \(P > Br > C > At\)
- D \(Br > C > At > P\)
Answer & Solution
Correct Answer
(D) \(Br > C > At > P\)
Step-by-step Solution
Detailed explanation
Atom \(E.N\) \(Br\) \(3.0\) \(C\) \(2.5\) \(At\) \(2.2\) \(P\) \(2.1\)
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
- When \(35\, mL\) of \(0.15\, M\) lead nitrate solution is mixed with \(20 \,mL\) of \(0.12\, M\) chromic sulphate solution, ....... \(\times 10^{-5}\) moles of lead sulphate precipitate out. (Round off to the Nearest Integer).JEE Mains 2021 Hard
- A first row transition metal (M) does not liberate \(H_{2}\) gas from dilute HCl. 1 mol of aqueous solution of \(MSO_{4}\) is treated with excess of aqueous KCN and then \(H_{2}S(g)\) is passed through the solution. The amount of MS (metal sulphide) formed from the above reaction is ___________ mol.JEE Mains 2026 Hard
- Two moles of benzaldehyde and one mole of acetone under alkaline conditions using aqueous \(\mathrm{NaOH}\) after heating gives \(x\) as the major product. The number of \(\pi\) bonds in the product \(x\) is _______.JEE Mains 2024 Medium
- Given below are two statements: one is labelled as Assertion \((A)\) and the other is labelled as Reason \((R)\) Assertion \((A) :\) At \(10^{\circ} C\), the density of a \(5\, M\) solution of \(KCl\) [atomic masses of \(K\) and \(Cl\) are \(39\) and \(35.5\, g \,mol ^{-1}\) ]. The solution is cooled to \(-21^{\circ} C\). The molality of the solution will remain unchanged. Reason \((R):\) The molality of a solution does not change with temperature as mass remains unaffected with temperature. In the light of the above statements, choose the correct answer from the options given belowJEE Mains 2022 Hard
- In the reaction, \(C{H_3}COOH\xrightarrow{{LiAl{H_4}}}A\xrightarrow{{PC{l_5}}} \) \(B\xrightarrow{{Alc.\,KOH}}C,\) the product \(C\) is :JEE Mains 2014 Medium
- Match List-I with List-II
Sr. No. List-I No. List-II (A) Solution of chloroform and acetone (I) Minimum boiling azeotrope (B) Solution of ethanol and water (II) Dimerizes (C) Solution of benzene and toluene (III) Maximum boiling azeotrope (D) Solution of acetic acid in benzene (IV) ΔVmix = 0
Choose the correct answer from the options given below :JEE Mains 2025 Hard
More PYQs from JEE Mains
- Let \(N\) be the foot of perpendicular from the point \(P\) \((1,-2,3)\) on the line passing through the points \((4,5,8)\) and \((1,-7,5)\). Then the distance of \(N\) from the plane \(2 x-2 y+z+5=0\) is \(.......\).JEE Mains 2023 Hard
- In interference experiment the path difference between two interfering waves at a point \(A\) on the screen is \(\lambda/3\), where \(\lambda\) is the wavelength of these waves, and at another point \(B\) the path difference is \(\lambda/6\). The ratio of intensities at points \(A\) and \(B\) is _______.JEE Mains 2026 Medium
- A student measuring the diameter of a pencil of circular cross-section with the help of a vernier scale records the following four readings \(5.50\, mm , 5.55\, mm ,\)\( 5.45\, mm ; 5.65\, mm .\) The average of these four readings is \(5.5375\, mm\) and the standard deviation of the data is \(0.07395\, mm .\) The average diameter of the pencil should therefore be recorded asJEE Mains 2020 Medium
- Space between two concentric conducting spheres of radii \(a\) and \(b (b > a)\) is filled with \(a\) medium of resistivity \(\rho \). The resistance between the two spheres will beJEE Mains 2019 Hard
- A body of mass \(m_1\) moving with an unknown velocity of \(v_1 \hat i\) undergoes a collinear collision with a body of mass \(m_2\) moving with a velocity \(v_2 \hat i\) . After collision \(m_1\) and \(m_2\) move with velocities of \(v_3 \hat i\) and \(v_4 \hat i\) respectively. If \(m_2 = 0.5\, m_1\) and \(v_3 = 0.5\, v_1\) then \(v_1\) is:JEE Mains 2019 Medium
- A quantity \(x\) is given by \(\left( IF v^{2} / WL ^{4}\right)\) in terms of moment of inertia \(I,\) force \(F\), velocity \(v\), work \(W\) and Length \(L\). The dimensional formula for \(x\) is same as that ofJEE Mains 2020 Hard