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Can we use 'Reference Triangle' for solving Inverse Trigonometric Questions in IIT-JEE(and other entrance exams)?

raajskyfall24680

6 Years agoGrade

2 Answers

veer

6 Years ago

1 mole H2O = 18 ml

Therefore , 36 ml H2O = 2 mole

Now 1 mole H2O contains 2 mole H and 1mole O

Therefore 2 mole H2O has 4 mole H and 2 mole O

Oxygen and hydogen both exist as a diatomic molecule. Therefore ,

No of moles of H2 = 2

And no of moles of O2 is = 1

Total volume = 36ml

Volume of H2 and O2 are in the ratio 2:1

Therefore volume of H2 = 24 ml and

Volume of O2 = 12ml

Yashraj

6 Years ago

yes you can as the more you take shortcutyou will be able to solve paper fastly

but you must assume that triangle which satisfies the given relation

dont make any mistake in it

hope you will understand

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