Ncert Solutions Chemistry Class 12th

For the reaction given below

CoCl₃ . xNH₃ + AgNO₃(aq) ->

If the equivalents of AgCl precipitate but, then the value of x will be__________.

The cell potential for the given cell at 298 K

${}_{}{}^{}{}^{}$  $Pt|H_2\left(g,1bar\right)\left|H^{+}\left(aq\right)\right|\left|C{u}^{2+}\left(aq\right)\right|Cu\left(s\right)is0.31V.$ The pH of the acidic solution is found to be 3, whereas the concentration of Cu2+ is 10x M. The value of x is________.

(Given : $E_{C{u}^{2+}/Cu}^{\Theta }=0.34Vand\frac{2.303RT}{F}=0.06V)$ ${}_{{}^{}}^{}\frac{}{}$

Given below are two statements : one is labelled as Assertion A and the other is labelled as Reason R.

Assertion A : Dacron is an example of polyester polymer.

Reason R : Dacron is made up of ethylene glycol and terephthalic acid monomers.

In the light of the above statements, choose the most appropriate answer from the options given below.

In Friedel-Crafts alkylation of aniline, one gets

Kindly consider the following figure

Which of the following carbocations is most stable?

Sulphur dioxide is one of the components of polluted air. SO₂ is also a major contributor to acid rain. The correct and complete reaction to represent acid rain caused by SO₂ is

Aqueous solution of which of the following boron compounds will be strongly basic in nature?

Amongst baking soda, caustic soda and washing soda, carbonate anion is present

Given below are two statements:

Statement I : In CuSO₄.5H₂O, Cu-O bonds are present

Statement II : In CuSO₄.5H₂O, ligands coordinating with Cu(II) ion are O- and S- based ligands

In the light of the above statements, choose Correct answer from the options given below: