what is Mohr's salt colour ?

Answer the question on basis of passage given below:
Organic compounds containing carbon -oxygen double bonds ( \(C = O\) ) are called carbonyl compounds. These are highly polar molecules. Hence, their boiling points are higher than hydrocarbons and ethers. Aldehydes can be prepared from dehydrogenation or oxidation of alcohols and by reduction of acylhalides. Ketones are prepared by oxidation of secondary alcohols or by hydration of alkynes etc. Aldehydes and ketones undergo nucleophilic addition reaction with the number of nucleophiles such as HCN , NaHSO 3 ammonia derivatives. Carboxylic acids are prepared by the oxidation of primary alcohols, aldehydes and alkenes, by hydrolysis of nitriles. Carboxylic acids are more acidic than alcohols and phenols.
The correct sequence of reagents for the conversion of \(3\)-nitrobromobensene to \(3\)-nitrobensoic acid is:

Identify the hormone from the following

Which of the following shows the least value for standard enthalpy of atomization?

A reaction is 2nd order w.r.t A and 1st order w.r.t B. When the concentrations of both A and B are doubled the rate of reaction will become:

Arrange the following compounds in the decreasing order of reactivity towards Sn1 reaction
(A) (Ph)3C-1
(B) (Ph)3C-Br
(C) (Ph)3C-Cl
(D) (Ph)3C-F
Choose the correct answer from the options given below:

Which of following is a correct statement ?

The area (in sq.units) of the region enclosed by the curve \(y = cos\) \(x\), \(-\frac{\pi}{2} \leq x \leq \frac{\pi}{2}\) and the \(x\) - axis is:

The electric potential energy for a system of two point charges of \( 6 \, \mu C \) and \( -3 \, \mu C \) placed at points x = - 9 cm and x = 9 cm, respectively is

Observe the given diagram representing global biodiversity and answer the question.

Global Bio-diversity
Identify which is not represented in the figure?

Drosophila melanogaster was chosen by Thomas Hunt Morgan for the experimental verification of the chromosomal theory of inheritance because of its:
(A) Many types of hereditary variations visible under a low-powered microscope
(B) Large number of progeny in single mating
(C) Clear differentiation of sexes
(D) Life cycle of about 4 weeks
Choose the correct answer from the options given below:

The ratio of the radius of the third orbit to that of the second orbit in a hydrogen atom is

The following reaction of benzene with carbon monoxide and hydrogen chloride in the presence of aluminum trichloride to give benzaldehyde is known as