The correct order of basicity for the following molecules is: 
The descending order of basicity of following amines is :
Choose the correct answer from the options given below :
Which of the following amine(s) show(s) positive carbamylamine test? 
Identify the part of the sentence that contains a grammatical error:
Each of the boys have submitted their assignment on time.
Rearrange the following parts to form a meaningful and grammatically correct sentence:
P. a healthy diet and regular exercise
Q. are important habits
R. that help maintain good physical and mental health
S. especially in today's busy world