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Chemistry · Class 10 · Monthly test
Total marks: 50
Time: 2 hours
Q1. Choose the correct answer.
(i) The number of electrons shared in a triple covalent bond is:
(a) 2(b) 3(c) 4(d) 6
Q2. Answer briefly.
(i) Why are noble gases unreactive?
(ii) Differentiate between ionic and covalent bonds.
Q3. Answer in detail.
Explain the formation of a sodium chloride crystal with a diagram.