The specific rate constant of a first order reaction depends on the

Half life of the zero order reaction is:

Choose the correct statement from the options given below:

The IUPAC name of [CoCl₂ (en)₂] Cl complex is :

How much current is needed to pass for 1 sec for depositing a metal with a mass equal to double of its electrochemical equivalent?

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Alcohols and phenols are formed when a hydrogen atom in a hydrocarbon, aliphatic and aromatic respectively is replaced by -OH group. These are further classified on the basis of number of hydroxy groups and according to the hybridization of the carbon atom \(sp ^2\) or \(sp ^3\) to which the -OH group is attached. They find applications in industry as well as in day-to-day life. One of the most commercially obtained alcohol also known as wood spirit is obtained by destructive distillation of wood. Both alcohols and phenols are acidic in nature. The acidity of alcohols and phenols vary according to the nature of substituent(s) attached to them. Alcohols and phenols react with carboxylic acids, acid chlorides and acid anhydrides to form esters. Introduction of acetyl group in alcohols and phenols is called acetylation. Phenol undergo electrophilic aromatic substitution reaction because the -OH activates the benzene ring. It undergoes nitration, halogenation and sulphonation reactions.
Which of the following compound lacks a phenolic group?

Choose the correct statements from the following related to glycine amino acid.
(A). Water soluble \(\alpha\)-amino acid.
(B). It has both amino and carboxylic groups in its structure.
(C). It is optically inactive.
(D). It is a non-essential amino acid.
Choose the correct answer from the options given below:

A heating element is marked \( V = 210 \text{ V, } P = 630 \text{ W} \). The resistance of the element (R) would be

The electron in a hydrogen atom emits wavelengths \( \lambda_1, \lambda_2, \lambda_3, \lambda_4 \) in the following transitions (A), (B), (C), and (D), respectively. Arrange the transitions in the increasing order of emitted wavelengths:
(A) n = 3 to n = 2
(B) n = 4 to n = 3
(C) n = 4 to n = 2
(D) n = 2 to n = 1
Choose the correct answer from the options given below:

Match List I with List II

List I	List ll
(A) Maize	(I) Perisperm
(B) Black Pepper	(II) False fruit
(C) Ground Nut	(III) Albuminous seed
(D) Strawberry	(IV) Ex-albuminous seed

Choose the correct answer from the options given below:

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Optically active polyhydroxy aldehydes or ketones or molecules which provide such units on hydrolysis are called carbohydrates. They can be broadly classified as monosaccharides, disaccharides and polysaccharides depending on their behavior towards hydrolysis. They are also classified as reducing or non-reducing sugars. Another class of biomolecules is proteins which are polymers of twenty different amino acids linked by peptide bonds. Amino acids can be classified as acidic, basic or neutral depending on the relative number of amino and carboxyl groups in their molecule. The essential amino acids cannot be synthesized by our body and hence must be provided through diet. Nucleic acids are the polymers of nucleotides which in turn consist of a base, pentose sugar and phosphate. There are two types of nucleic acids namely, DNA and RNA which differ in the composition of sugar and a base
"Maltose" disaccharide is composed of

The fraction of tritium remains undecayed after 25 years, if its half life is 12.5 years will be:

A substance, when placed in a magnetic field acquires feeble magnetization in a direction opposite to the applied field, is