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Physics, Chemistry, Biology, C.S --> Hardest Questions Compiled

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is the answer D?

Nope it is A, as from W to Z, long breaths are being taken. Whereas we are talking about rapid breathing, that involves short breaths
 
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CORRECTION GUYS: The answer to the first Chemistry MCQ is D
I don't know why but automatic papers gave me the ans as C

The reasoning behind this is that bases increase the pH. CaCO3 is also a base.
CaSO4 is NOT A BASE
 
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CORRECTION GUYS: The answer to the first Chemistry MCQ is D
I don't know why but automatic papers gave me the ans as C

The reasoning behind this is that bases increase the pH. CaCO3 is also a base.
CaSO4 is NOT A BASE
haha thought so....p.s y is calcium carbonate a base
 
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Some useful CS mark scheme notes.....(OS features,documentations,robotics)
 

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