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Kerala PSC - Important and Expected General Science Questions - 23

Kerala PSC - Important and Expected General Science Questions - 23

1. Which color is given to glass by cadmium sulphide?


2. Which color the glass gets when carbon is added?


3. What gives ruby color to glass?


4. Which type of glass is also known as 'soft glass'?


5. Which type of glass is resistant to the action of acids?


6. Which type of glasses are clear & transparent?


7. The borosilicate glass is also known as ___


8. Which type of glass has good chemical durability & resistant to heat?


9. The silica glass is also known as ___


10. Which type of glass prevents the ultra violet rays?


11. Which metal oxide present in crookes glass cuts ultra violet rays?


12. Which type of glass has high refractive index?


13. Which acid attacks the glasses?


14. Which acid is used for the etching of glasses?


15. Glass used for Lenses for spectacles


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