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प्रश्न
Complete the statement by filling the blank with the correct word from the option.
The ratio of hydrogen & oxygen in water is ____.
पर्याय
2 : 1
1 : 2
उत्तर
The ratio of hydrogen & oxygen in water is 2 : 1.
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संबंधित प्रश्न
Name the four main sources of water.
Give reason for Silica gel pouches are kept in unused water bottle.
Give balanced chemical equation for the reaction of water with Iron .
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 |
Answer the following question:
What is the chemical composition of water ? Give its molecular formula.
Give a balanced equation for the following conversion:
Potassium oxide to a strong alkali.
Name one substance which is ‘deliquescent’.
Give the influence of pressure.
From where do the following usually get water? In which form is water present in them?
Aquifer
Water polluted by various human activities causes a number of water-borne diseases. Which of the following is not a waterborne disease?
