JEE Mains · Chemistry · STD 12 - 5. Co-ordination chemistry
Identify the diamagnetic octahedral complex ions from below ;
A. \(\left[\mathrm{Mn}(\mathrm{CN})_6\right]^{3-}\)
B. \(\left[\mathrm{Co}\left(\mathrm{NH}_3\right)_6\right]^{3+}\)
C. \(\left[\mathrm{Fe}(\mathrm{CN})_6\right]^{4-}\)
D. \(\left[\mathrm{Co}\left(\mathrm{H}_2 \mathrm{O}\right)_3 \mathrm{~F}_3\right]\)
Choose the correct answer from the options given below :
- A B and D Only
- B A and D Only
- C A and C Only
- D B and C Only
Answer & Solution
Correct Answer
(D) B and C Only
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
- The potential for the given half cell at \(298 \mathrm{~K}\) is \((-)\) _______ \(\times 10^{-2} \mathrm{~V}\). \(2 \mathrm{H}_{(\mathrm{aq})}^{+}+2 \mathrm{e}^{-} \rightarrow \mathrm{H}_2(\mathrm{~g})\) \({\left[\mathrm{H}^{+}\right]=1 \mathrm{M}, \mathrm{P}_{\mathrm{H}_2}=2 \mathrm{~atm}}\) (Given: \(2.303 \mathrm{RT} / \mathrm{F}=0.06 \mathrm{~V}, \log 2=0.3\) )JEE Mains 2024 Hard
- The final product formed when Methyl amine is treated with \(NaNO_2\) and \(HCl\) isJEE Mains 2014 Hard
- The ratio of mass percentage (w/w) of C : H in a hydrocarbon is \(12 : 1\). It has two carbon atoms. The weight (in g) of \(CO_2(g)\) formed when \(3.38\) g of this hydrocarbon is completely burnt in oxygen is : (Given : Molar mass in g mol\(^{-1}\) C : 12, H : 1, O : 16)JEE Mains 2026 Medium
- The number of molecules with energy greater than the threshold energy for a reaction increases five fold by a rise of temperature from \(27^{\circ}\, C\) to \(42^{\circ}\, C .\) Its energy of activation in \(J / mol\) is.............. (Take in \(\ln 5=1.6094;\left.R =8.314\, J mol ^{-1} K ^{-1}\right)\)JEE Mains 2020 Medium
- The reaction \(2 NO + Br _2 \rightarrow 2 NOBr\) takes places through the mechanism given below : \(NO + Br _2 \Leftrightarrow NOBr _2 \text { (fast) }\) \(NOBr _2+ NO \rightarrow 2 NOBr \text { (slow) }\) The overall order of the reaction is \(.....\).JEE Mains 2023 Medium
- Consider the below reaction, and choose the correct statement:
JEE Mains 2021 Hard
More PYQs from JEE Mains
- The heat extracted out of \(x\) gram of water initially at \(50°C\) to cool it down to \(0°C\) is sufficient to evaporate \((1000 - x)\) gram of water also initially at \(50°C\). The value of \(x\) (closest integer) is _______.
(Take latent heat of water \(2256\text{ kJ/kg.K}\), specific heat capacity of water \(4200\text{ J/kg.K}\))JEE Mains 2026 Hard - A uniform sphere of weight \(W\) and radius \(5\, cm\) is being held by a string as shown in the figure. The tension in the string will be
JEE Mains 2013 Hard - If the projection of \(2 \hat{i}+4 \hat{j}-2 \hat{k}\) on \(\hat{i}+2 \hat{j}+\alpha \hat{k}\) is zero. Then, the value of \(\alpha\) will be.JEE Mains 2022 Hard
- Two particles, of masses \(M\) and \(2M\), moving as shown, with speeds of \(10\, m/s\) and \(5\, m/s\), collide elastically at the origin. After the collision, they move along the indicated directions with speeds \(v_1\) and \(v_2\) respectively. The value of \(v_1\) and \(v_2\) are nearly
JEE Mains 2019 Hard - The probability that a randomly chosen \(2 \times 2\) matrix with all the entries from the set of first \(10\) primes, is singular, is equal toJEE Mains 2022 Hard
- The least positive integer \(n\) such that \(1 - \frac{2}{3} - \frac{2}{{{3^2}}} - .... - \frac{2}{{{3^{n - 1}}}} < \frac{1}{{100}},\) isJEE Mains 2014 Hard