Which of the following statements about diamond are correct ? 1. It is used as a gem in jewellery because of its ability to reflect light 2. It is a good conductor of electricity 3. It is used for cutting glass, marble stones and other hard materials 4. I

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Q: 36 (NDA-I/2011)

Which of the following statements about diamond are correct ?
1. It is used as a gem in jewellery because of its ability to reflect light
2. It is a good conductor of electricity
3. It is used for cutting glass, marble stones and other hard materials
4. It is used for drilling of rocks
Select the correct answer using the code given below :
AnyChart Trial Version

question_subject: 

Science

question_exam: 

NDA-I

stats: 

0,23,8,23,0,7,1

keywords: 

{'diamond': [0, 0, 3, 3], 'jewellery': [0, 0, 0, 1], 'good conductor': [0, 0, 2, 0], 'marble stones': [0, 0, 0, 1], 'gem': [0, 0, 0, 1], 'electricity': [0, 0, 1, 3], 'rocks': [9, 0, 3, 15], 'light': [16, 4, 34, 62], 'other hard materials': [0, 0, 0, 1]}