Question

lemon and tamarind is used for cleaning copper vessels turned greensh.It is of which chapterin class10
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Answer 1

Answer:

useful in industry and

business. Weather forecasts are also based on mode. It is very useful to

agriculturists, businessmen, etc. Mode is also used in socio-economic surveys.

Mode is also mostly used in business and commerce

Answer 2

Answer:

The critic acid present in the lemon or tamarind neutralises the basic copper carbonate and dissolves the layer

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