Which of the following statement(s) is correct?
(A). Keratin is an example of fibrous protein.
(B). Fibrous proteins are water-soluble, while globular proteins are water-insoluble.
(C). Polypeptide chains in fibrous proteins run parallel and are held together by hydrogen and disulphide bonds.
(D). Insulin and albumins are common examples of globular proteins.
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What is the product of the following reaction?
\[R-CN \frac{H_2 / Ni}{Na(Hg) / C_2 H_5 OH}\]
The options are:

The increasing order of acidity of the following compounds based on pKa values is:
(A) \(BrCH _2 COOH\)
(B) \(CICH _2 COOH\)
(C) \(FCH _2 COOH\)
(D) \(HCOOH\)

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According to Valence Bond theory, the metal atom or ion under the influence of ligands can use its ( \(n-1) d, n s, n p\) or \(n s, n p, n d\)orbitals for hybridisation to yield a set of equivalent orbitals of definite geometry such as octahedral, tetrahedral, square planar and so on. These hybridised orbitals are allowed to overlap with ligand orbitals that can donate electron pairs for bonding. While the VB theory, to a larger extent, explains the formation, structures and magnetic behaviour of coordination compounds, it suffers from the many shortcomings. The Crystal field theory (CFT) is an electrostatic model which considers the metal-ligand bond to be ionic arising purely from electrostatic interactions between the metal ion and the ligand. The five \(d\) orbitals in an isolated gaseous metal atom/ion have same energy, i.e., they are degenerate. This degeneracy is maintained if a spherically symmetrical field of negative charges surrounds the metal atom/ion. However, when this negative field is due to ligands in a complex, it becomes asymmetrical and the degeneracy of the \(d\) orbitals is lifted. It results in splitting of the \(d\) orbitals. The pattern of splitting depends upon the nature of the crystal field.
The spin only magnetic moment of \(\left[ MnBr _4\right]^{2-}\) is 5.9 BM. Predict the geometry of the complex ion?

Arrange the following oxides in the order of their basic strength:
(A) \(V_2O_5\)
(B) \(V_2O_3\)
(C) \(V_2O_4\)
(D) \(Mn_2O_7\)
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Arrange the following in the increasing order of their solubility in n-octane on the basis of their solute-solvent interaction:
(A) KCI
(B) CH3OH
(C) CH3CN
(D) Cyclohexane
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DNA fingerprinting is used for:
(A) Forensic Laboratories for identification of criminals
(B) To identify paternity of an individual
(C) To identify the dead bodies by comparing the DNA of parents or children
(D) To identify racial groups, to rewrite biological evaluations.
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Match List-l with List-II

List-l (Enzymes)	List-II (Products)
(A) RNA polymerase I	(I) hnRNA
(B) RNA polymerase III	(II) Polymerization of deoxynucleotides
(C) RNA polymerase II	(III) rRNAs
(D) DNA polymerase	(IV) tRNA, 5srRNA and snRNAS

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The mathematical expression that represents the logistic growth in a population is :

If A is a square matrix such that \(A^2=A\) and I is the identity matrix of the same order as A, then \((I+A)^2-3 A\) is equal to

At what rate of interest will the present value of a perpetuity of Rs. 1000 payable at the end of every six months be Rs. 40000 ?

Following are the steps involved in Hershey and Chase experiment to prove DNA as the genetic material.
(A) Blending the cells
(B) Centrifugation of the cells was performed
(C) Growing some bacteriophages on a medium containing radioactive phosphorus and other on radioactive sulfur.
(D) Cells were infected with virus
(E) Observation and established the inference.
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From the following, choose the element for impurity atoms with which pure silicon should be doped to make it a p-type semiconductor: