What is the correct IUPAC name of the following compound?
Choose the correct option for structures of A and B, respectively:
A shows positive Lassaigne's test for N and its molar mass is 121.
B gives effervescence with aqueous NaHCO3.
C gives fruity smell.
Identify A, B, and C from the following.
Given below are two statements: One is labelled as Assertion (A) and the other is labelled as Reason (R).
Assertion (A): A typical unfertilized, angiosperm embryo sac at maturity is 8-nucleate and 7-celled.
Reason (R): The egg apparatus has 2 polar nuclei.
In the light of the above statements, choose the correct answer from the options given below:
A sphere of radius R is cut from a larger solid sphere of radius 2R as shown in the figure. The ratio of the moment of inertia of the smaller sphere to that of the rest part of the sphere about the Y-axis is :