Question
Which of the following solutions will not change the
colour of blue litmus paper to red? 1. Acid solution 2. Base solution 3. Common salt solution Select the correct answer using the codes given belowSolution
The blue litmus paper turns red in acidic solution and blue in basic solution. The neutral solution does not affect the litmus paper. Now since common salt solution is neutral hence do not show any colour change on litmus paper.
If sin x + cos x = 7/5, find sin⁴ x + cos⁴ x:
A solid cylinder has a radius of 3 cm and a height of 10 cm. If it is melted and recast into a cone with a base radius of 3 cm, what will be the height ...
Which web browsers offer Incognito Mode as a privacy feature?
A man buys 200 shares of face value ₹100 each at ₹120 per share. The company declares a dividend of 15%. Find the rate of return on his investment.
- Microsoft Windows, Google's Android, and Linux are all examples of what?
If the ratio of the ages of A, B, and C is 2:3:5 and the sum of their ages is 50 years, what is the age of the youngest person?
The average of 20 numbers is 62. If 3 is added to each number, then the new average will be:
A boat can travel at a speed of 15 km/h in still water. If the speed of the current is 3 km/h, how long will it take to travel 24 km upstream?
The first, second and fourth terms of a ratio are 4, 6 and 12 respectively. So what will be the third term?
13 7 8 13.5 29 ? 228
