Carbon is a part of both natural polymers and synthetic polymers? Cellulose is also a polymer? What about wool and silk?
What is the definition of acids? Give example of weak acid, and very weak acid
What are the differences between Nylon, Rayon and Dacron?
What are the harmful effects of DDT?
The HCF of (n + 3) and (7n + 48) is k, where n is a natural number. How many values of k are possible
How you can get the sum of 31 from five 3's? You have to use all 3's
A car covers a certain distance taking 7 hours in forward journey. During the return journey, speed was increased by 12 kmph and it takes 5 hours. What is total distance covered?
what would be the next number in the sequence 2.20, 74, 110?
what would be the next number in the sequence 8, 20, 28, 44,
Imagine that u r driving a car from mysore to bangalore at a speed of 75mph. Car no is KA-19 DB1955. Distance between Bangalore and Mysore is 250 Km____ Now tell me wat s the date of birth of the driver.
Perimeter of front wheel = 30, back wheel = 20. If front wheel revolves 240 times. Howm many revolutions will the back wheel take?
Find out the smallest four digit number which is divisible from 1 to 10?
Define the various types of rainfall. If it rains in the Gangetic plains due to Himalayas it would be which type of rainfall?
Why none of the types of rainfall gives sufficient rainfall to Rajasthan region?
We spread dry clothes to make them dry. Why?
How drying of clothes is related to the humiidity in the air?
Why our wet hairs stick with each other?
Why fish die (after some time and not instantly) when removed from the water?
If a tiger is 1km away from you then approximately how much time he will take to eat you? The friction of the ground surface is zero.
A polar bear has thick layer of fat so that it can withstand the low temperature. What are the disadvantage of having a thick fat layer (to the polar bear)?
Rotation of earth around the Sun is independent of the rotation of the Mars?
Mercury is harmful still it is used in thermometers, CFL, to measure pressure etc. Why?
Does there exist any frictional force on the moon?
What are contact forces?
Forces are “due to an interaction between two bodies” Explain