Question
Which of the following is NOT a
base?Solution
Among the given options, C₂H₅OH (ethanol) is NOT a base. The other substances are bases: KOH- (potassium hydroxide) is a strong base. NH₄OH -(ammonium hydroxide) is a weak base. NaOH- (sodium hydroxide) is a strong base.
The difference between compound interest and simple interest at the same rate for Rs. 3200 for 2 years is Rs. 128. The rate of interest per annum is:
Anchal allocates a portion of his salary for various purposes. He invests 10% of his salary in a Provident Fund (PF) and then spends 30% of what's left ...
Shankar borrowed Rs. 7,200 at simple interest and repaid an amount of Rs. 9,504 after 7 years. If the interest rate p.a charged for first 4 years was 5...
A person lent Rs. 15000 at SI for 2 years at rate 20%. The interest he got again lent at CI for 2 years at rate 10%. Find the amount he got after 2 years.
A invested Rs. ‘x’ in a scheme offering compound interest of 40% p.a. compounded annually. If at the end of 2 years, interest received by A was Rs. ...
The compound interest on a certain amount for 2 years at 4% per annum is ₹ 1,428 if interest is compounded annually. Find the simple interest on that ...
Find the ratio of simple interest and compound interest compounded annually received on a certain sum of at 20% rate of interest after two years respect...
1000 rupees is invested in a scheme p.a. simple interest. Another amount (1000 – x) is invested in scheme B at 2R% p.a. simple interest. After 5 y...
- Ramesh invested Rs. 8,000 in scheme ‘X’ offering simple interest of 15% p.a. After 3 years, he reinvested the total interest earned from scheme ‘X’...
A man invested a certain amount of sum at 12.5% per annum simple interest and earned an interest of Rs.2500 after 5 years. If the same amount is investe...
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