Who was known as Iron man of India?

Answer: Given Mass % of iron = 69.9 %  Mass % of oxygen = 30.1 %  Element Atomic mass Mass % Mass % / atomic mass Fe 55.85 69.9 69.9/55.85 = 1.25 O 16.00 30.1 30.1/16.00 = 1.88 Fe : O = 1.25 : 1.88 Converting...

Iron nails become reddish brown in colour and solution becomes green in colour.

(c) (i), (iii) and (iv)

(a) North pole is almost equal to the south pole.

1. Odisha-Jharkhand Belt- Famous for Haematite iron ore. Badampahar Mines in the Mayurbhanj and Kendujhar districts. Singhbhum district of Jharkhand. 2. Durg-Bastar-Chamdarapur Belt- High Grade Haematite ore. Chhatisgarh and Maharashtra.Bailadadila range...

(c) 60N. Explanation: According to Newton’s third law, which states that an action-reaction pair of forces are equal in magnitude, the man who weighs 40 kg will push the other man with...

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