Question

4 भुजाओं वाली एक बंद आकृति, जिसकी
दो सम्मुख भुजाएँ बराबर होती हैं, एक
कहलाता है।​

Answer 1

Answer:

Draw flowcharts for the following:

1. To accept the length of two line segments and check whether they are equal

or unequal. Display the message accordingly.

2. To enter two angles and check whether they are complementary or not.

3. To enter the age of a person and check whether he/she is eligible to vote or

not.

4. To accept the age of a student and check whether he/she is a teenager or not.

Answer 2

Answer:

Molar mass of ethylene glycol - (12*2 + 1*6 + 16*2) = 62g/mol. so, in 20g we have 20/62 = 0.32 mol. Mole fraction of ethylene glycol = No of moles of ethylene glocal/ Total number of moles. = 0.068 .