The order of reaction will be if the value of rate constant is \(7.195 \times 10-4\) \(mol ^{-3} L^3 s^{-1}\)

Arrange the following alkyl halides in increasing order of reactivity towards SN2 reaction :
(A) 1-Bromobutane
(B) 1-Bromo-2,2-dimethylpropane
(C) 1-Bromo-2-methylbutane
(D) 1-Bromo-3-methylbutane
Choose the correct answer from the options given below :

Read the passage carefully and answer the questions.
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.
The following equation represents the reaction taking place in a Galvanic cell:
Mg(s) + 2Ag\(^+\)(0.001 M) \(\rightarrow\) Mg\(^2+\)(0.01 M) + 2Ag(s)
Calculate its \(E_{\text {cell }}\) at 298 K if \(E_{\text {cell }}^{\circ}=2.91 \mathrm{~V}\).

Which one of the following is most reactive towards substitution nucleophilic unimolecular (\(\text{S}_1\)) reactions?

Deficiency disease caused due to deficiency of Vitamin \(K\) is :

The cell emf depends on:

Toluene reacts with a halogen in the presence of FeCl 3, giving a mixture of ortho and para halo compounds. This type of reaction is called:

Arrange the following plants as per the correct order of their evolution.
(A). Psilophyton
(B). Tracheophyte ancestors
(C). Rhynia-type plants
(D). Chlorophyte ancestors
Choose the correct answer from the options given below:

Which of the following is true?

The remainder when \(2^{340}\) is divided by 341 is :

Which of the following examples are based upon the total internal reflection of light?
(A) Optical fibre
(B) Twinkling of stars
(C) Mirage
(D) Sparkling of diamond
Choose the correct answer from the options given below:

Current carrying wire produces:

The magnetic dipole moment associated with an atom due to orbital motion of an electron in fourth stationary orbit of the hydrogen atom is :