Exams

Which of the following gases is liberated when Sodium Hydrogen Carbonate is heated?

A mixture contains acid and water in the ratio of 7 : 3. If 4 litres of water is added to it, then the ratio of acid and water becomes 7 : 4. What is the quantity (in litres) of acid in the mixture?

In a certain code language, '-' represents 'x', '÷' represents '+', '+' represents '÷' and 'x' represents '-'. Find out the answer to the following question.

3 x 8 ÷ 4 - 60 + 12 = ?

If the diameter of the two circles is 6 units and 10 units and a centre distance of 8 units. Calculate the number of common tangents that can be drawn to both the circle.

A shop keeper purchased 10 kg of rice and 20 kg of sugar at Rs. 75 and Rs. 85 per kg respectively. On selling, he gained 20% on rice and 10% on sugar. What was the total sale price?

Which of the following metals is a liquid at room temperature?

Which country, on 25 October 2017 announced that it would be introduced a minimum wage for workers?

Which diabetes requires insulin shots?