JEE Mains · Chemistry · STD 12 - 5. Co-ordination chemistry
A chromium complex with a formula \(CrCl _3 \cdot 6 H _2 O\) has a spin only magnetic moment value of 3.87 BM and its solution conductivity corresponds to \(1: 2\) electrolyte. 2.75 g of the complex solution was initially passed through a cation exchanger. The solution obtained after the process was reacted with excess of \(AgNO _3\). The amount of AgCl formed in the above process is __________ g. (Nearest integer)
[Given : Molar mass in \(g~mol ^{-1} Cr : 52 ; Cl : 35.5\), \(Ag : 108, O : 16, H : 1]\)
- A 3
- B 1
- C 6
- D 10
Answer & Solution
Correct Answer
(A) 3
Step-by-step Solution
Detailed explanation
\(\begin{array}{lc}{\left[ Cr \left( H _2 O \right)_5 Cl \right] Cl _2 \cdot H _2 O + AgNO _3} & \rightarrow 2 AgCl \\ 2.75 / 266.5 & - \\ =0.0103 \text { moles } & 0.02063 \text { mole }\end{array}\) Mass of \(AgCl =0.02063 \times 143.5=2.96 gm\)
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 rate constant for a first order reaction is given by the following equation: \(\ln k=33.24-\frac{2.0 \times 10^{4} \,K }{ T }\) The Activation energy for the reaction is given by \(...\,k\,\,J mol ^{-1}\). (In Nearest integer) (Given: \(R =8.3\, J\, K ^{-1} \,mol ^{-1}\) )JEE Mains 2022 Medium
- Given below are two statements :- Statement \(I:\)- In redox titration, the indicators used are sensitive to change in \(pH\) of the solution. Statement \(II:\)- In acid-base titration, the indicators used are sensitive to change in oxidation potential. In the light of the above statements, choose the most appropriate answer from the options given belowJEE Mains 2023 Medium
- Consider the following molecules :
The correct order of rate of hydrolysis is _______.JEE Mains 2025 Medium - Which among the following compounds give yellow solid when reacted with \(\mathrm{NaOI} / \mathrm{NaOH}\) ?
Choose the correct answer from the options given below :JEE Mains 2025 Medium - Consider the following reactions:
\( NaCl+K_{2}Cr_{2}O_{7}+H_{2}SO_{4}\rightarrow A+KHSO_{4}+NaHSO_{4}+H_{2}O \)
\( A+NaOH\rightarrow B+NaCl+H_{2}O \)
\( B+H_{2}SO_{4}+H_{2}O_{2}\rightarrow C+Na_{2}SO_{4}+H_{2}O \)
In the product 'C', 'X' is the number of \( O_{2}^{2-} \) units, 'Y' is the total number oxygen atoms present and 'Z' is the oxidation state of Cr. The value of X+Y+Z is __________ .JEE Mains 2026 Hard - One mole of an ideal gas at \(350\,K\) is in a \(2.0\,L\) vessel of thermally conducting walls, which are in contact with the surroundings. It undergoes isothermal reversible expansion from \(2.0\,L\) to \(3.0\,L\) against a constant pressure of \(4\,atm\). The change in entropy of the surroundings \((\Delta S )\) is \(......\,J\,K ^{-1}\) (Nearest integer) Given : \(R =8.314\,J\,K ^{-1}\,Mol ^{-1}\).JEE Mains 2023 Medium
More PYQs from JEE Mains
- For the four circles \(M , N , O\) and \(P ,\) following four equations are given Circle \(M : x ^{2}+ y ^{2}=1\) ; Circle \(N : x ^{2}+ y ^{2}-2 x =0\) ; Circle \(O : x ^{2}+ y ^{2}-2 x -2 y +1=0\) ;Circle \(P: x^{2}+y^{2}-2 y=0\) If the centre of circle \(M\) is joined with centre of the circle \(N\), further centre of circle \(N\) is joined with centre of the circle \(O ,\) centre of circle \(O\) is joined with the centre of circle \(P\) and lastly, centre of circle \(P\) is joined with centre of circle \(M ,\) then these lines form the sides of aJEE Mains 2021 Medium
- A galvanometer having a coil resistance of \(100\ \Omega\). gives a full scale deflection, when a currect of \(I\ mA\) is passed through it. The value of the resistance, which can convert this galvanometer into ammeter giving a full scale deflection for a current of \(10\ A\), is :......\(Ω\)JEE Mains 2016 Medium
- If \(\overrightarrow{ a } \cdot \overrightarrow{ b }=1, \overrightarrow{ b } \cdot \overrightarrow{ c }=2\) and \(\overrightarrow{ c } \cdot \overrightarrow{ a }=3\), then the value of \([\vec{a} \times(\vec{b} \times \vec{c}), \vec{b} \times(\vec{c} \times \vec{a}), \vec{c} \times(\vec{b} \times \vec{a})]\) isJEE Mains 2022 Hard
- If the shortest distance between the lines \(\frac{{x - 1}}{\alpha } = \frac{{y + 1}}{{ - 1}} = \frac{z}{1},(\alpha \ne \, - 1)\) and \(x+y+z +1=0= 2x - y + z + 3\) is \(\frac {1}{\sqrt 3},\) then a value \(\alpha \) isJEE Mains 2015 Hard
- The angular frequency of alternating current in a \(L-C-R\) circuit is \(100\, rad / s\). The components connected are shown in the figure. Find the value of inductance of the coil and capacity of condenser.
JEE Mains 2021 Hard - If the matrices \(A=\left[\begin{array}{ccc}{1} & {1} & {2} \\ {1} & {3} & {4} \\ {1} & {-1} & {3}\end{array}\right], B=\operatorname{adj} A\) and \(\mathrm{C}=3 \mathrm{A},\) then \(\frac{|\mathrm{adjB}|}{|\mathrm{C}|}\) is equal toJEE Mains 2020 Hard