The conversion of hard water into soft water by boiling or adding calcium hydroxide is called _______.
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In a compound the elements are always present in definite proportions by ______
Alkali metals can
How does a Unicellular Organism reproduce?
Who was the second woman to become the president of the Indian National Congress in 1925 and the first Indian woman to do so?
The Delhi – Lahore Bus is officially known as __________________.
What is the SI unit of frequency?
If the Distance-Time graph is a straight inclined line then it represents _______________.
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