MEDIUMMCQ SINGLEIChO (Chemistry Olympiad)Inorganic Chemistryp-Block (group 13 and 14)Previous Year Questions
Which of the following is used for making optical instruments? (AFMC 2008)
A.SiO2✓ Correct
B.Si
C.SiH4
D.SiC
Explanation
Generally, silica is used for making optical instruments. Hence, the correct option is (a).
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