Assertion :If ∫1f(x)dx=log(f(x))2+C, then f(x)=x2 Reason: When f(x)=x2 then ∫1f(x)dx=∫2xdx=2log|x|+C
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Q2
Assertion: The compressibility factor for H2 and He is (1+PbRT) Reason: The compressibility factor for H2 and He can be derived from Van der Waal's equation.
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Q3
Assertion: All the points (1, 0), (-1, 0), (2, 0) and (5, 0) lie on the x – axis. Reason: Equation of the x-axis is y = 0
Choose the correct option.
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Q4
ASSERTION: n-Pentane and n-Hexane belong to a homologous series.
REASON: n-Pentane and n-Hexane belong to the same class of hydrocarbons and they differ by a - CH2 - group.
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Q5
Assertion : Two electrons of helium atom are placed in only one shell but three electrons of lithium need two shells. Reason: A shell can have maximum 2n2 electrons.