When \(Br_2\) is treated with aqueous solution of \(NaF, NaCl, NaI\) separately:

Arrange the following compounds in increasing order of their acidity :
(A) Phenol
(B) 4 -methylphenol
(C) 3-nitrophenol
(D) 4-nitrophenol
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Which is the correct decreasing order of boiling point
A. 1 - Bromoethane
B. 1 - Bromopentane
C. 1 - Bromobenzene
D. 1 - Bromopropane
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Match List - I with List - II.

List - I (Polymer)	List - II (Monomer)
(A) Nylon 2-nylon 6	(I) Ethylene glycol and Benzene-1,2-dicarboxylic acidne
(B) Neoprene	(II) Glycine and Amino caproic acid
(C) Glyptal	(III) Adipic acid and Hexamethylene diam
(D) Nylon 6, 6	(IV) 2-chlorobuta-1,3-diene

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The product \(( Y )\) in the following reaction is
\(2 C_6 H_5 CHO \xrightarrow[\text { Hest }]{\text { conc. } NaOH} Y+C_6 H_5 COONa\)

The correct order for increasing the boiling point of hydrides (given below) of group 15 is:
(A) \(NH _3\)
(B) \(PH _3\)
(C) \(AsH _3\)
(D) \(SbH _3\)
(E) \(BiH _3\)
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The increasing order of stability is :
(A) \(\left[ Cu \left( NH _3\right)_4\right]^{2+}\)
(B) \(\left[ Cu \left( CN _4\right]^{2-}\right.\)
(C) \(\left[ Cu (e n)_2\right]^{2+}\)
(D) \(\left[ Cu \left( H _2 O \right)_4\right]^{2+}\)
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A proton moves from south to north with a speed of \( 2 \times 10^7 \, \text{m/s} \). When a magnetic field is applied from west to east, the proton gets an acceleration of \( 10^{12} \, \text{m/s}^2 \). The mass of the proton is \( 1.6 \times 10^{-27} \, \text{kg} \). The value of the magnetic field is:

Read the following passage carefully and answer the given questions.
Plasmodium, a tiny protozoan is responsible for the disease malaria. 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. Innate immunity consist of four types of barriers. These are – (i) Physical barriers- skin on our body is the main barrier which prevents entry of the micro-organisms. (ii) Physiological barriers- Acid in the stomach, saliva in the mouth, tears from eyes-all prevent microbial growth. (iii) Cellular barriers- Certain types of leukocytes (WBC) of our body like polymorpho-nuclear leukocytes (PMNL-neutrophils) and monocytes and natural killer (type of lymphocytes) in the blood as well as macrophages in tissues can phagocytose and destroy microbes. (iv) Cytokine barriers- virus-infected cells secrete proteins called interferons which protect non-infected cells from further viral infection. Allergy is due to the release of chemicals like histamine and serotonin from the mast cells. 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.
Which one of the followings is not an example of physiological barriers?

Select the correct sequence for transport of sperm in the male reproductive
system.
(A) Urethra
(B) Urethra meatus
(C) Ejaculatory duct
(D) Vas deferens
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What types of bond (linkage) are present in nucleotide?

Which among the following shows positive deviation from Raoult's law?

Match List - I with List - II.

List - I	List - II
(A) Insulin	(I) Carbohydrate metabolism
(B) Glucocorticoids	(II) Controls blood sugar level
(C) Mineralocorticoids	(III) Low level of thyroxine
(D) Hypothyroidism	(IV) Control levels of excretion of salt

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