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Hard Water contains which of the following?

October 4, 2025 by Admin

A. Aluminum

B. Chlorine

C. Calcium

D. Zinc

✅ The correct answer is option C.

Categories General Science, SSC Tags General Science MCQs, SSC MCQs

Which among the following is an ionic solid?

The noble gases are a group of chemical elements with very similar properties: under standard conditions, they are all odorless, colorless, monatomic gases, with a very low chemical reactivity. How many Noble gases occur naturally?

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