How many electrons are involved in the oxidation by KMnO4 in basic medium
In alkaline medium, KMnO4KMnO4 acts as an oxidising agent as follows MNO−4+2H2O+3e−→MnO2+MNO4−+2H2O+3e−→MnO2+OH−OH− Thus three electrons per molecule of are involved.
In a class, 2/5 of the students are girls and rest are boys. If 4/9 of the girls and 1/3 of the boys are absent, what part of the total number of studen...
The value of 
In a four digit number, the units place digit is one more than the hundreds place digit and the tens place digit is one less than the thousand place dig...
When a number is increased by 20% then the number obtained is 72 less than thrice the original number. Find the original number.
Which pair of these numbers is cop rime?
A and B have 6 and 7 pieces of bread respectively. They share their food with C, who pays them Rs 42 for the received breads. If each of them has equal ...
If the largest three – digit number is subtracted from the smallest five – digit number, then the remainder is
A six-digit number 4c68d2 is divisible by 12. Find the sum of all possible values of 'c' for the largest possible value of 'd'.
Aakriti’s present age is 5 times of Poonam’s age. The sum of the present ages of Aakriti, Poonam and Aakriti’s father is 86 yrs. Aakriti’s fathe...
