Please answer the question 20
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1) Because Copper is less reactive than zinc.
2) Because aluminum is very mellable.
3) Because Sodium and potassium which are very reactive reacts vigorously with oxygen in air when kept open.
4)Because oil reacts with aluminum and make food unsuitable,unhealthy to eat.
5)Sorry but I can't see this question
2) Because aluminum is very mellable.
3) Because Sodium and potassium which are very reactive reacts vigorously with oxygen in air when kept open.
4)Because oil reacts with aluminum and make food unsuitable,unhealthy to eat.
5)Sorry but I can't see this question
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5) because CNG doesn’t leave any byproducts on burning while wood does
Similar questions
(i) Copper cannot displace zinc from its salt solution.
(ii) Aluminium foils are used to wrap foods items.
(iii) Sodium and potassium are stored in kerosene.
(iv) It is not good to store lemon pickle in an Aluminium vessel.
(v) LPG is a better domestic fuel than wood.