5. Fill in the blanks.
(a) Carbon burns in the air to form…………….. .
(b) Sodium and water form……….. and hydrogen gas.
(c) Metal, oxygen and moisture form ……………….
(d) Magnesium and oxygen form………… and ………………
(e) The series in which the metals are placed in their
decreasing order of reactivity……………..
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Answer:
(a)CO2
(B) NaOH
(C) Rust
(D)Magnesium and oxygen gas
(E)Activity series
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