Question set I 

 

Q 1) Many Magneto Resonance Imaging (MRI) instruments used in hospitals uses superconducting magnets. Which superconducting material is widely used for MRI magnets? 

Q 2) Name the piezoelectric crystal,other than quartz,used in conventional gas lighter.  This material is of low cost and exhibits high sensitivity and has Perovskite structure.

Q 3) What is the catalyst used in Contact process for the manufacture of sulphuric acid?

Q 4) Name this bright yellow chemical produced by some plants. It is the principal component of turmeric, a member of the ginger family. This component is sold as an herbal supplement, cosmetics ingredient, food flavoring, and food coloring agent.

Q 5) Visual question

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