Correct option: A
Explanation: Melatonin hormone is secreted by the pineal gland, whose function is to regulate the normal rhythm of the sleep-wake cycle.
Q 11. Identify the hormone with its correct matching of source and function. Option A Melatonin – Pineal gland – regulates the normal rhythm of sleep-wake cycle. Option B Progesterone – corpus luteum – secondary sex organs. Option C Atrial natriuretic factor –ventricular wall – increases the blood pressure. Option D Oxytocin – posterior pituitary – growth and maintenance of mammary glands.
Q 11. Identify the hormone with its correct matching of source and function. Option A Melatonin – Pineal gland – regulates the normal rhythm of sleep-wake cycle. Option B Progesterone – corpus luteum – secondary sex organs. Option C Atrial natriuretic factor –ventricular wall – increases the blood pressure. Option D Oxytocin – posterior pituitary – growth and maintenance of mammary glands.
gives full scale deflection with a current of 
. The value of shunt, in order to convert it into an ammeter of 10 ampere range, will be 
![[\mathrm{Ni}(\mathrm{CO}) 4],[\mathrm{Ni}(\mathrm{CN}) 4]^{2-}](https://www.learnatnoon.com/s/wp-content/ql-cache/quicklatex.com-25ca8cc0452b80c10765631cf5f37277_l3.png "Rendered by QuickLaTeX.com")
and ![\left[\mathrm{NiCl}_{4}\right]^{2-}](https://www.learnatnoon.com/s/wp-content/ql-cache/quicklatex.com-ae9f97570b35b9a9ec847eef5963fc9b_l3.png "Rendered by QuickLaTeX.com")
species, the hybridisation state of 
atoms are respectively: 
dsp 
(B) 
(C) 
(D) 