Which is/are Non-biodegradable polymers ?
(A) Nylon 6, 6
(B) Nylon-2, Nylon-6
(C) PHBV
(D) Phenol formaldehyde resin
(E) Dacron
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Electrochemistry is the study involving two types of processes. One type involves the production of electricity from the energy released during a spontaneous chemical reaction. Galvanic cells like Daniel cells are used to produce electricity from the redox reaction. Nernst equation of a galvanic cell gives the relation between the standard cell potential and the concentration of the species involved in the redox reaction. The second type of study involves the cells in which electrical energy is used to bring about the chemical reactions in a non-spontaneous process. The conductance of electrolytic solution depends on many factors including the nature of the electrolyte and the dimensions of the electrolytic cell.
What is the SI unit of conductivity?

Which of the following compounds have T-shaped structure?
(A) \(XeOF_2\)
(B) \(BrF_5\)
(C) \(IF_7\)
(D) \(ClF_3\)
(E) \(XeO_3\)
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Which of the following could not be a rate determining step?

Which of the following sols are correctly matched with their corresponding charges ?
(A) \(\text{Cr(OH)}_3\) sol : negatively charged sol
(B) \(\text{TiO}_2\) sol : positively charged sol
(C) \(\text{CdS}\) sol: positively charged sol
(D) Gum: negatively charged sol
(E) Silver sol : positively charged sol
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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 be colored in the solid state?

Two identical capacitors are joined in parallel, charged to a potential V and then separated and connected in series, i.e., negative plate of first is connected to positive plate of second :

For finding absolute maximum and minimum values of a function \(f\) given by
\(f(x)=2 x^3-15 x^2+36 x+1 \text { on }[1,5]\)
A. the critical points in \((1,5)\) are 2 and 3 .
B. the absolute maximum value of \(f\) on \([1,5]\) is 29 .
C. the absolute minimum value of \(f\) on \([1,5]\) is 24 .
D. the absolute minimum value of \(f\) on \([1,5]\) is 20 .
E. we evaluate the value of \(f\) at critical points and at the end points of the interval \([1,5]\).
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If \(A, B\) are symmetric matrices of the same order, then \(A B-B A\) is a :

Three point charges +q, +q and -2q are placed at the corner of an equilateral triangle of side 'a'. The net dipole moment of the system is

What is an example of globular protein?
(A) Insulin
(B) Keratin
(C) Albumin
(D) Myosin
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If time taken for a first order reaction to get \(90\%\) complete is \(24\ min\), its \(t_{99.9\%}\) will be: