Anisole on heating with concentrated HI gives:

A radioactive substance decays with a rate constant of 9.2 x 10^-3 min^-1 Time taken for \(75 \%\) of the sample to decompose is

The electronic configuration of the last three orbitals in cerium (At. No. 58) in ground state is:

Identify the product 'X' in the following reaction:
\(C_2H_5COONa\ \xrightarrow[\text{Heat}]{NaOH+CaO}\ X+ Na_2CO_3\)

Read the passage carefully and answer the Questions
The term vitamin was coined from the word vital +amine since the earlier identifiedc ompounds had amino groups. Later work showed that most of them didn't contain amino groups. They are very essential for the body. They has to be taken various diet or in the form of medicines also.
Vitamins are classified into two groups depending upon their solubility in water or fat.
Fat soluble vitamins are soluble in fat and oils but insoluble in water. They are stored in liver and adipose (fat storing) tissues Water-soluble vitamins are soluble in water. These must be supplied regularly in diet because they are readily excreted in urine and cannot be stored in our body.
What are the sources of Vitamin C?

Which of the following hormones is produced under the condition of stress which stimulates glycogenolysis in the liver of human beings?

Reducing sugars among the following are :
(A) Maltose
(B) Sucrose
(C) Lactose
(D) Fructose
(E) Cellulose
Choose the correct answer from the options given below :

\(V_2 O _6\) catalyst is used in the manufacturing of

Read the passage carefully and answer the questions.
Amines are considered to be derivatives of ammonia obtained by replacement of hydrogen atoms with alkyl or aryl groups. They are usually prepared from nitro compounds, halides, amides, imides etc. The presence of hydrogen bonding influences its physical properties. In alkylamines, a combination of electron releasing steric and hydrogen bonding factors influences the stability of substituted ammonium cations in protic polar solvents and thus affects the basic nature of amines. Alkyl amines are found to be stronger bases than ammonia which is more basic than water. Primary and secondary amines are engaged in intermolecular association due to hydrogen bonding. This intermolecular association is more in primary amines than in secondary amines. Tertiary amines do not have intermoleulcar association due to the absenceof hydrogen atom available for hydrogen bonding. Thus, the boiling point of amines depends on hydrogen bonding. In aromatic amines, electron releasing and withdrawing groups increase and decrease their basic character. Aryl diazonium salts usually obtained from arylamine undergo replacement of the diazonium group with a variety of nucleophile. Their coupling reaction of aryl diazonium salts with phenol or arylamine results in formation of dyes.
The most basic species in the following is

The reaction of two molecules of 1-chlorobenzene with sodium metal in the presence of dry ether to form diphenyl is known as

Observe the given figure and answer the following questions:

Which of the following are not part of Innate immunity?
(A) Skin and acid in stomach
(B) B-Lymphocytes
(C) IgE and IgG
(D) Tears from eyes

The unit's digit in \(13^{61}\) is

What types of bond (linkage) are present in nucleotide?