Enthalpy of atomisation of transition elements can be arranged in increasing order as:
A. \(V\)
B. \(Cr\)
C. \(Mn\)
D. \(Fe\)
E. \(Co\)
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Which of the following statements are correct?
(A) A solution which obeys Raoult's law strictly is called an ideal solution.
(B) A solution which shows deviations from Raoult's law is called a real solution.
(C) If \(T_b\) is the boiling point of the solvent and \(T\) is the boiling point of the solution, then the difference in boiling points (\(\Delta T_b = T_b - T\)) is called elevation of boiling point.
(D) The elevation of boiling point is related to the lowering of vapor pressure.
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Arrange the following complexes in increasing order of number of moles of silver chloride precipitated
when one mole of each is reacted with excess of silver nitrate.
(A) \(\left[ Co \left( NH _3\right)_4 Cl _2\right] Cl\)
(B) \(\left[ Co \left( NH _3\right)_5 Cl \right] Cl _2\)
(C) \(\left[ Co \left( NH _3\right)_3 Cl _3\right]\)
(D) \(\left[ Co \left( NH _3\right)_6\right] Cl _3\)
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Which of the following pairs of solutions are isotonic?

Which of the properties are shown by d block elements ?
(A) Complex formation
(B) Chelating agents
(C) Bleaching agents
(D) Catalytic properties
(E) Alloy formation
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During the denaturation of proteins, which of the following bond/interaction is not broken?

Read the passage carefully and answer the questions
Amines are considered as derivatives of ammonia obtained by replacement of hydrogen atoms with alkyl or aryl groups. In nature they occur among proteins, vitamins, alkaloids and hormones. These can be primary, secondary or tertiary depending on the number of hydrogen groups replaced. They can be prepared from nitro compounds, alkyl halides, nitriles, amides etc. Due to unshared pair of electrons they behave as Lewis bases. Influence of the number of hydrogen atoms at nitrogen atom is displayed in physical properties such as solubility, boiling point and chemical reactions including basicity. Basic character of amines is expressed in terms of their \(K_b\) and \(p K_b\) values. Three classes of amines can be distinguished with p-toluene sulphonyl chloride which reacts with primary and secondary ddu amines. Amino group when attached to benzene ring behaves as an activating and ortho para directing group.
Which of the following is a tertiary amine?

Which one of the following features of pea plant is not suitable for genetical studies?

Consider the following statements :
(A) \(\int_{-a}^a f(x) d x=2 \int_0^a f(x) d x\) if \(f(-x)=-f(x)\)
(B) \(\int_a^b f(x) d x=\int_a^b f(t) d t\)
(C) \(\int_0^a f(x) d x=\int_0^a f(x-a) d x\)
(D) \(\int_a^b f(x) d x=\int_a^b f(a+b-x) d x\)
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The arrangement of the nuclei in a normal embryo sac from the chalazal to micropylar end in dicots is -

Below given are some statements about electronic devices:
(A) Diodes can be used for rectifying an ac voltage.
(B) For semiconductors, band gap energy \( E_g > 3 \, eV \).
(C) By changing the external applied voltage, junction barriers can be changed.
(D) p-n junction is the 'key' to all semiconductor devices.
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Arrange the given steps in correct sequence of their occurrence when lactose is provided in the growth medium of bacteria:
(A) Operator got free, RNA polymerase binds to promoter
(B) Lactose is hydrolysed to glucose and galactose
(C) Lactose binds to repressor protein
(D) Gene z, y, a are transcribed
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Arrange the given organs in correct sequence which are involved in life cycle of Plasmodium.
(A) Gut of mosquito
(B) Salivary gland of mosquito
(C) Liver of man
(D) Blood of man
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