Question
The bacteria responsible for oxidizing Fe2+ - Fe3+
(ferrous to ferric form) under acidic environment is_?Solution
Thiobacillus is a acidophilic and chemolithoautotrophic bacteria that obtain its energy from the oxidation of Ferrous ions and reduced sulfur compounds
Rs. 25200 is invested in 3 parts in such a way that Simple Interest on 1st Part at 4% per annum for 3 years, Simple Interest on 2nd part at 6% per annum...
- Anjali invested Rs. 9,150 at a simple interest rate of 4% p.a. for 5 years. If she receives Rs. '2n' in total, what is the product of all digits in 'n'?
- Calculate the total return on Rs. 60,000 invested for 2 years at 15% p.a. simple interest.
The difference between the simple interest and the compound interest compounded annually at the same rate on a sum of money at the end of two years is R...
A sum of money amounts to Rs.767 in 3 years, and to Rs.806 in 4 years on simple interest at 6% annum. What is the sum?
There is 40% increase in an amount in 8 years at simple interest. What will be the compound interest of Rs. 16,000 after 3 years at the same rate?
- Rs. 6,500 becomes Rs. 8,190 in 3 years at simple interest. Determine the rate of interest per annum.
Rs. 5000 when invested at simple interest of r% p.a. amounts to Rs. 6000 in 24 months. If the same sum had been invested for 1 year at compound interest...
A sum of money was invested at an annual compound interest rate of 8%, with interest compounded yearly. After 2 years, the total interest earned was Rs....
Simple interest on a certain sum at the rate of (50/3)% per annum for three years is Rs. 1250. Find the sum.
