Ahydrocarbon of pentane has two isomeric forms—n-pentane and iso-pentane. the molecular formula of the n-pentane is c5h12. predict the molecular formula of the iso-pentane. the choices are:

a) c5h10
b) c5h12
c) c5h9

The correct answer is option B, that is, C5H12.

Explanation:

The two isomeric forms of pentane are iso-pentane and n-pentane. The isomeric form of n-pentane is iso-pentane. The isomers exhibit similar molecular formula, however, differ in the atomic arrangement projected in the three-dimensional and the alignment of atoms mainly leading to the formation of a distinct set of characteristics. In this situation, iso-pentane also exhibits a molecular formula of an alkane C5H12.

"menstrual cycle is a complex cycle that consists of several processes. order of occurrence of steps in menstrual cycle are as follows:

1. high progesterone levels maintain the endometrium lining of the uterus.

2. endometrium lining breaks down and low levels of estrogen stimulate the pituitary to release fsh and lh.

3. fsh and lh stimulates the follicles to develop and the oocyte to produce estrogen.

4. rising estrogen levels suppress fsh production and development of other follicles.

5. a spike in lh causes follicle to rupture.

6. a breakdown of corpus luteum causes progesterone level to drop."