CG assignment 06 January class 10 English full solutions 2022

11th class English model paper solution

Sentence : Type & Parts || Day 1 || Class 10 English Grammar || UP Board Exam 2022

If the fermentaion of sugar in an enzymatic solution that is 0.12 M, the concentration of the sugar is reduced to 0.06 M in 10 h and to 0.03 M in 20 h. What is the order of the reaction?

A solution contains A^(+) and B^(+) in such a concentration that both deposit simultaneously. If current of 9.65 amp was passed through 100ml solution for 55 seconds then find the final concentration of A^(+) ion if initial concentration of B^(+) is 0.1M . [Fill your answer by multiplying it with 10^(3)] . Given: {:(A^(+)+e^(-)rarrA,,E^(@) =- 0.5 "volt"),(B^(+)+e^(-)rarrB,,E^(@) =- 0.56 "volt"),((2.303RT)/(F) =0.06,,):}

0.6 g of a sample of pyrolusite was boiled with 200 " mL of " (N)/(10) oxalic acid and excess of dilute sulphuric acid. The liquid was filtered and the residue washed. The filtrate and washing were mixed and made up to 500 mL in a measuring flask. 100 " mL of " this solution required 50 " mL of " (N)/(30)KMnO_4 solution. Calculate the percentage of MnO_2 in the sample (Mn=55) .

In the cell Pt (s) | H_(2) (g, 1 " bar")| HCl (aq)| AgCl(s) | Ag(s) | Pt(s) the cell potential is 0.92 V when a 10^(-6) molal HCl solution is used. The standard electrode potential of (AgCl//Ag, Cl^(-)) electrode is {Given, (2.303RT)/(F) = 0.06V at 298 K}

The density of 10% by mass of KCl solution in water is 1.06 g mL^(-1) . Calculate molarity and molality of the solution.

In a class, 30% students fail in English, 20% students fail in Hindi and 10% students fail in both English and Hindi. A student is chosen at random, then what is the probability he fail in English, if he has failed in Hindi?

In a class, 30% students study English, 15% study Hindi and 10% study both English and Hindi. One student is selected at random. Find the probability that (i) He studies English if it known that he Hindi (ii) He studies Hindi if it is known that he studies English