Chemistry General Science Test Hard Mode

Sr. #	Questions	Answers Choice
1	How many moles of Helium gas occupy 22.4 L at 0^oC at 1 atm.Pressure?	0.11 0.90 1.0 1.11
2	1 mole of CH₄ contains	6.02 x 10<sup>23</sup> atoms of H 4 g-atom of hydrogen 1.81 x 1023 molecules of CH<sub>4</sub> 3.0 g of carbon
3	Which of the following has least mass?	2 gram atom of nitrogen 3 x 10<sup>23</sup> atoms of C 1 mole of S 7.0 g of Ag.
4	What quantity of limestone (CaCO₃) on heating will give 56 kg of CaO?	1000 kg 56 kg 44 kg 100kg
5	The percentage of oxygen in NaOH is	40 60 8 10

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