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

Identify the correct pKa value order:
A. Phenol
B. 4-Methylphenol (p-Cresol)
C. Benzoic acid
D. 4-Methylbenzoic acid
E. 4-Nitrobenzoic acid
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Read the passage carefully and answer the Questions
Haloalkanes undergo nucelophilic substitution reactions owing to the polarity of CX bond. The nucleophile reacts with the haloalkane on the carbon possessing a partial positive charge holding the halogen atom. The halogen atom \(X\) is replaced by a nucleophile. Depending on the kinetics and mode of bond breaking, the mechanism can be either SN1 or SN2 reaction. The rate of SN1 reaction is governed by the stability of carbocation and in SN2 reaction, the rate of reaction is governed by steric factor. Chirality is the main factor in both SN1and SN2. In SN1 reaction, the chirality of alkyl halide is accompanied by racemization of the product, while in SN2 reaction, the product is characterized by inversion of configuration. The structure of alkyl halide and the nature of the solvent also governs the mechanism of the substitution.
Which of the following compound will undergo \(S_N 1\) reaction readily?

Which of the following compounds will not give azo coupling reaction with benzene diazonium chloride?

Aldol condensation reaction is not given by :

Which of the following colligative property is associated with concentration in terms of molarity?

Which among the following are coordination complexes?
(A) Mohr's salt
(B) Tetraamminediaquacobalt (II) ion
(C) Carnallite
(D) Potassium ferricyanide
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If \(P(A)=\frac{2}{5}, P(B)=\frac{3}{10}\) and \(P(A \cap B)=\frac{1}{5}\), then \(P\left(A^{\prime} / B^{\prime}\right) \cdot P\left(B^{\prime} / A^{\prime}\right)\) is equal to :

Read the following paragraph and answer the given questions.
Cancer detection is based on biopsy and histopathological studies. Techniques like radiography (use of X-rays), CT (computed tomography) and MRI (magnetic resonance imaging) are very useful to detect cancers of the internal organs. Do you know why mother's milk is considered very essential for the new-born infant? The yellowish fluid colostrum secreted by mother during the initial days of lactation has abundant antibodies (IgA) to protect the infant. Different species of Plasmodium (P. vivax, P. malaria and P. falciparum) are responsible for different types of malaria. Of these, malignant malaria caused by Plasmodium falciparum is the most serious one and can even be fatal. The exaggerated response of the immune system to certain antigens present in the environment is called allergy. The use of drugs like anti-histamine, adrenalin and steroids quickly reduce the symptoms of allergy. Drugs like barbiturates, amphetamines, benzodiazepines, and other similar drugs, that are normally used as medicines to help patients cope with mental illnesses like depression and insomnia, are often abused. Morphine is a very effective sedative and painkiller, and is very useful in patients who have undergone surgery.
Malignant malaria is caused by -

Which of the following alkyl halides will undergo \(S_N 2\) reaction most readily?

The forelimbs of bat, whale, cheetah and human are the examples of:

Match List I with List II.

List-I	List-II
A. Insulin	I. Female hormone
B. Thyroxine	II. Male sex hormone
C. Testosterone	III. Thyroid
D. Estradiol	IV. Blood glucose level

Choose the correct answer from the options given below :

The correct expression for osmotic pressure of the solution involving dissociation of the solute is