Question
What causes the permanent hardness of
water?Solution
Permanent hardness of water is caused by the presence of soluble salts of chlorides and sulfates of calcium and magnesium. Unlike temporary hardness, which can be removed by boiling, permanent hardness remains unless treated with a chemical process.
How many days are organized for the modern Olympic Games?
Which of the following varieties of rice is known as the miracle rice for India and was first harvested in 1967 with exceptional yield?
For Kharif crops, the temperature required for farming is above 25 degrees Celsius with high humidity and annual rainfall above ________ cm.
In all AIBA Boxing competitions, the rest time between each round is ________ minutes.
What is the Asian record of 4*400 meter men relay team at World Athletics Championships?
How many tiers are there in the Panchayati Raj structure?
Yuki Bhambri is associated with:
Electro-composite compounds are usually soluble in ___________.
Which of the following statements are correct about general elections to the Lok Sabha?
1. Each Parliamentary Constituency will elect only one me...
Sao Joao festival is celebrated primarily by the Catholic Christians in which of the following Indian states?
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