Class 11th

Non-aromatic species among the following is

Photochemical smog does not contain

Which of the following is a disproportionation reaction?

A.  Cu⁺   $\stackrel{}{\to }$ Cu²⁺ + Cu

B.        $Mn{O}_4^{2-}$ $\stackrel{}{\to }$ $Mn{O}_4^{2-}$ + MnO₂

C.  H₂O₂   $\stackrel{}{\to }$ O₂ + H₂O

D.     Cr^{3+ $Cr{O}_4^{2-}$ $\stackrel{}{\to }$} + H₂O

Ka values of three acids A, B and C are 10^–3, 5 * 10^–9, 9 * 10^–11 respectively. The acidic strength order of these acids is

For ionic reaction in organic compound which type of bond cleavage occur?

Among the following second ionisation energy is maximum for

+1 oxidation state is most stable for

Select the correct statement among the following

Statement-I: Potassium hydrogen phthalate is primary standard for NaOH solution.

Statement-II: Phenolphthalein is used to detect completion of titration.

(1) Both statement-l and statement-II are correct

(2) Statement-1 is correct and statement-II is incorrect

(3) Statement-l is incorrect and statement-II is correct

(4) Both statement-I and statement-II are incorrect

Select the incorrect statement among the following