Which of the following combinations are correct?

Enzyme	Final product formed
A. Maltase	Glucose
B. Pepsin	Ammonia and \(CO _2\)
C. Urease	Amino acid
D. Zymase	Ethanol and \(CO _2\)
E. Diastase	Glucose

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Answer the question on the basis of passage given below :
One of the notable features of the transition element is the great variety of oxidation states it may show in its compounds. The elements which give the greatest number of oxidation states occur in or near the middle of the series. Manganese, for example exhibits all the oxidation states from +2 to +7. The lesser number of oxidation states at the extreme ends is either due to losing or sharing of few electrons (Sc, Ti) or too many d electrons of higher valence. Early in the first series scandium (II) is virtually unknown and titanium (IV) which is more stable than Ti (III) or Ti (II). On the other end, the only oxidation state of zinc is \(+ 2\).
Oxidation state of scandium is

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Aldehydes and Ketones, having atleast one methyl group linked to the carbonyl carbon atom (methyl Ketones), are oxidised by sodium hypohalite to sodium salts of corresponding carboxylic acids having one carbon atom less than that of carbonyl compound is converted to haloform. This oxidation does not affect a carbon - carbon double bond, if present in a molecule.
Arrange in decreasing order of nucleophilic addition :
A. \(CH_3CHO\)
B. \(C_2H_5COCH_3\)
C. \(CH_3COCH_3\)
D. \(HCHO\)
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Aldehydes, carboxylic acids and ketones are widespread in the animal and plant kingdoms. They play a pivotal role in various biochemical processes of life. Their presence in nature adds fragrance and flavor. These compounds are widely used in food products, pharmaceuticals, paints, resins and other important product industries. These compounds are prepared by various laboratory methods, which mainly include oxidation, formylation, acylation and reduction. Due to the polar nature of the carbonyl group in aldehydes and ketones, they can exhibit different reactions like nucleophilic addition. They do exhibit redox and various condensation reactions which lead to the formation of various important compounds. On the other hand, the carboxylic acids are mainly prepared by oxidation and hydrolysis of different compounds. The carboxylic acid consists of a carbonyl group and the hydroxy group (attached to the carbonyl carbon atom). This makes it possible for the carboxylic acid to participate in various chemical reactions which involve cleavage of the C-OH bond and the O-H bond along with the reactions involving the complete - COOH group.
Arrange the following in the increasing order of their \(p K_{ a }\) values :
(A) \(CF _3- COOH\)
(B) \(O _2 N- CH _2- COOH\)
(C) \(NC - CH _2- COOH\)
(D) \(H - COOH\)
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A catalyst increases the rate of reaction by:

From the following, choose the one which are not secondary haloalkanes :
(A) 2-Bromopentane
(B) 1-Bromo-3-methylbutane
(C) 3-Bromopentane
(D) 2-Bromo-2- methylbutane
(E) 2-Bromo-3-methylbutane
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Match List I with List II:

List-I	List-ll
A. \(Fe ^{2+}\)	I. 2.84 BM
B. \(Ni ^{2+}\)	II. 0.00 BM
C. \(Mn ^{2+}\)	III. 4.90 BM
D. \(Zn ^{2+}\)	IV. 5.92 BM

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Match List I with List - II.

List-I	List-II
(A) Radio waves	(I) 1 mm to 700 nm
(B) Infrared waves	(II) 700 nm to 400 nm
(C) Light waves	(III) 1 nm to \(10^{-3} nm\)
(D) X-rays	(IV) > 0.1 m

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If \(f(x)=x^3 e^{-x}\), then the value of \(f^{\prime \prime}(1)\) is equal to

Lower half of a convex lens is opaque. The image of an object placed in front will :

The chromosomal theory of inheritance was proposed by:

The radius of curvature of each surface of a double convex lens is 15 cm and the refractive index of the medium of the lens is 1.5. What is the focal length of the lens?

A compound is formed by two elements P and Q. The element Q forms ccp and atoms P occupy \(1/3^{rd}\) of tetrahedral voids. What is the formula of the compound ?