Home
Class 12
CHEMISTRY
STATEMENT-1: Addition of HCl (aq.) to HC...

STATEMENT-1: Addition of HCl (aq.) to HCOOH(aq.) decrease the dissociation of HCOOH(aq.)
STATEMENT-2: Due to common ion effect of `H^(+)`, dissociation of HCOOH decrease.

A

STATEMENT-1 is true, statement-2 is true and statement-2 is correct explanation for statement-1.

B

STATEMENT-1 is true, statement-2 is true and statement-2 is not correct explanation for statement-1.

C

statement-1 is true, statement-2 is false

D

statement-1 is false, statement-2 is true

Text Solution

Verified by Experts

The correct Answer is:
A
Due to common ion effect , `[H^(+)]` increase therefore ionization of HCOOH decreased.
Promotional Banner

Topper's Solved these Questions

  • JEE MAIN REVISION TEST - 26 (2020)

    VMC MODULES ENGLISH|Exercise CHEMISTRY (SECTION 2)|5 Videos

  • JEE MAIN REVISION TEST - 25 | JEE - 2020

    VMC MODULES ENGLISH|Exercise CHEMISTRY|25 Videos

  • JEE MAIN REVISION TEST - 27 - JEE -2020

    VMC MODULES ENGLISH|Exercise CHEMISTRY (SECTION 2)|5 Videos

Similar Questions

Explore conceptually related problems

STATEMENT-1: Molar conductivity increases with decrease in concentration for weak electrolysis. STATEMENT-2: No. of ions increases and no. of ions per unit volume decreases due to dilution.

STATEMENT-1: Solubility of sparingly soluble salt decreases due to common ion effect. STATEMENT-2: Solubility product constant does not depend on common ion effect.

STATEMENT-1: Conductivity decreases with the decrease in concentration of both the weak and strong electolytes. STATEMENT-2: No. of ions per unit volume linearly decreases in both electrolytes.

Statement-1 : The difference in the boiling points of equimolar solution of HCl and HF decreases as their molarity is decreased. Statement-2 : The extent of dissociation decreases steadily with increasing dilution.

0.01 M HA (aq.) is 2% dissociated, [OH^(-)] of solution is :

What effect does the concentration of H^(+)(aq) ions have on the nature of the solution?

Assertion :- The dissocation constant of poly basic acid are in order K_(1)gtK_(2)gtK_(3) . Reason :- The H^(+) ion furnished in first step of dissocation exert common ion effect to reduce the second dissociation and soon.

Complete the reactions : Zn(s)+2HCl(aq) to ….. + H_2 uarr

The following reaction is at equilibrium , underset("Yellow")(Fe_((aq))^(3+))+ underset("Colourless")(SCN_((aq)))rArrunderset("Deep red") ([Fe(SNC)]_((aq))^(2+)) K_(c)=([Fe(SCN)])/([Fe^(3+)][SCN]) In the above reaction , colour intensity of red colour can be increased by :- (A) addition of KSCN (B) addition of oxalic acid which reacts with F e 3 + ions (C) addition of H g 2 + ions which react with S C N − ions (D)red colour intensity cannot be changed

A mixture of H_2C_2O_4 and HCOOH is heated with conc H_2SO_4 . The gas produced is collected and on treatment with KOH solution, the volume of the gas decreases by (1)/(6) calculate the molar ratio of the two acids in the original mixture.