Millionaire Mode

Sorting Materials into Groups (HBBVS)

Question 1 of 15

What is annealing of iron?

  1. Breaking an iron rod
  2. Repeatedly heating and cooling an iron rod to increase strength
  3. Coating an iron rod with another metal
  4. Rusting of iron due to water
  5. NA

Prize Money

15₹7 Crores
14₹1 Crore
13₹50,00,000
12₹25,00,000
11₹12,50,000
10₹6,40,000
9₹3,20,000
8₹1,60,000
7₹80,000
6₹40,000
5₹20,000
4₹10,000
3₹5,000
2₹2,000
1₹1,000