SCIENCE 1
Which one among the following substances evolves heat when dissolved in water?
1 point
When we eat something we like, our mouth waters. This is actually not water but fluid secreted from
1 point
Wind is often found to blow in a hot summer day due to
1 point
Heavy water implies
1 point
Dead organs are generally stored in formalin. Formalin is
1 point
When items of jewellery made of metals such as copper or nickel are placed in a solution having a salt of gold, a thin film of gold is deposited by
1 point
Due to contraction of eyeball, a long-sighted eye can see only
1 point
Rainwater collected after 30 to 40 minutes of raining is not suitable for drinking because it
1 point
White blood cells act
1 point
Water is a good coolant and is used to cool the engines of cars, buses, trucks, etc. It is because water has a
1 point
Submit
This content is neither created nor endorsed by Google.