Advertisements
Advertisements
प्रश्न
Explain why:
Rain water does not leave behind concentric rings when boiled.
Advertisements
उत्तर
Rain water does not leave concentric rings when boiled because rain water does not contain dissolved solids.
APPEARS IN
संबंधित प्रश्न
Give reason On opening a bottle of a cold drink, a fizz sound is heard.
Name the gas produced when fossil fuel is burnt.
Match the statements in column A with that in column B.
| Column A | Column B |
| (a) deliquescent substance | (1) sodium bicarbonate |
| (b) hygroscopic substance | (2) magnesium chloride |
| (c) efflorestance substance | (3) conc. sulphuric acid |
| (d) substance causing temporary hardness | (4) washing soda |
Give one word for the following statement:
A mixture of common salt and ice .
Give balanced chemical equations to show the reaction between Coke and steam.
Explain why rivers and lakes do not freeze easily.
Answer in your own words.
Why is there a shortage of water even though it occupies about 71% of the earth’s surface?
Name or state the following:
A deliquescent salt of a trivalent metal.
What happens when a spoonful of sugar, sawdust, and soil are added to a glass of water?
A jumbled word is given here. Write the correct form of the word.
QUIFERA
