10 science chapter 1 – Tiwari Academy Discussion

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Asked: November 26, 2019In: Class 10

What does one mean by exothermic and endothermic reactions?

Describe exothermic and endothermic reactions with examples.

Asked: November 26, 2019In: Class 10

Why is respiration considered an exothermic reaction?

During the respiration we take oxygen and release carbon dioxide and water.

Asked: November 26, 2019In: Class 10

Why are decomposition reactions called the opposite of combination reactions?

Give examples.

Asked: November 26, 2019In: Class 10

What do you mean by a precipitation reaction?

Explain by giving examples.

Asked: November 26, 2019In: Class 10

Why do we apply paint on iron articles?

Give examples from daily life.

Asked: November 26, 2019In: Class 10

Oil and fat containing food items are flushed with nitrogen. Why?

Packets of chips and other eating materials are packed with inert gas? why?