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Everyday Science MCQs — Test 91

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Question 1
P2O5 is a hygroscopic powder which sublimes at______________?
Question 2
Phosphoric acid is a weak acid and its basicity is____________________?
Question 3
Which of the following is different with respect to physical appearance ?
Question 4
Which one of the following is not a semiconductor ?
Question 5
The process of aluminium extraction is called__________________?
Question 6
Aqueous solution of borax above 62°C gives crystals of________________?
Question 7
Which of the following is not a use of silicon ?
Question 8
CO2 is gas while SiO2 is solid at room temperature?
Question 9
Identify the correct statement regarding CO_______________?
Question 10
Boric acid cannot be used__________________?