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Chemistry: Post your doubts here!

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Use of the Data Booklet is relevant to this question.
560 kg of nitrogen and 120 kg of hydrogen are pressurised, heated and passed over an iron
catalyst. When the mixture of gases reaches equilibrium, it contains 96 kg of hydrogen.

Which mass of ammonia does it contain?
A 24 kg B 68 kg C 136 kg D 680 kg

answer is C

Can someone please explain me how to solve this question and yea mmm whats the difference between induce dipole and permanent dipole
 
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For those who gave the paper today. what was the answer of organic mcq. where they asked about compund X??
 
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someone please solve this :(

Use of the Data Booklet is relevant to this question.
560 kg of nitrogen and 120 kg of hydrogen are pressurised, heated and passed over an iron
catalyst. When the mixture of gases reaches equilibrium, it contains 96 kg of hydrogen.

Which mass of ammonia does it contain?
A 24 kg B 68 kg C 136 kg D 680 kg

answer is C

Can someone please explain me how to solve this question and yea mmm whats the difference between induce dipole and permanent dipole
 
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Which factor helps to explain why the first ionisation energies of the Group I elements decrease
from lithium to sodium to potassium to rubidium?
A The nuclear charge of the elements increases
B the outer electron is in the s subshell
C repulsion between spin paired electrons increases
D shieldng efect of inner electrons increases
answer is D bt shouldnt it b C???
 
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someone please solve this :(

Use of the Data Booklet is relevant to this question.
560 kg of nitrogen and 120 kg of hydrogen are pressurised, heated and passed over an iron
catalyst. When the mixture of gases reaches equilibrium, it contains 96 kg of hydrogen.

Which mass of ammonia does it contain?
A 24 kg B 68 kg C 136 kg D 680 kg

answer is C

Can someone please explain me how to solve this question and yea mmm whats the difference between induce dipole and permanent dipole
96 kg hydrogen is left means (120 - 96) = 24 kg was used up

The equation:
3H2 + N2 --> 2NH3

(3 * 2) = 6 kg hydrogen produces (2 * 17) = 34 kg ammonia

1 kg hydrogen would produce (34/6) kg ammonia
24 kg hydrogen would produce
= (34 / 6) * 24
= 136 kg ammonia

That is why answer is C
 
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anyone here who can help??
for question 40 :
the last option is incorrect so it has to be 1 & 2
2 because a salt is formed and 1 because alcohol is formed with the (OH) from (NAOH)
for question 28 :X contains nine carbon atoms and reacts with 2,4-dinitrophenylhydrazine reagent.
3 DNP are required to react with 9 carbon atoms
 
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