What are the number of chiral centers in the given Alkyl halide

Choose the incorrect statements from the following :
(A) The dipole moment of cyclohexyl chloride is smaller than chlorobenzene.
(B) Alkyl halides are immiscible with water.
(C) The dipole moment of methyl chloride is higher than that of methyl fluoride.
(D) Chloroform doesn't undergo aerial oxidation in the presence of light
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By reaction of compound \(\text{Ph} - \text{O} - \text{CO} - \text{Ph}\) with NaOH solution yields
A. Phenol
B. Benzaldehyde
C. Benzoic acid
D. Benzophenone
Choose the correct answer from the options given below :

Match List-l with List-ll

List-l	List-II
(A) Coupling reaction	(I) Primary amines
(B) Hofmann's degradation	(II) Aromatic amines
(C) Isocyanide test	(III) Phenols and aromatic amines
(D) Diazonium salts	(IV) Amide to amine

Choose the correct answer from the options given below:

Predict the order of decreasing reactivity of the following compounds towards SN1 reaction.
(A) \(\mathrm{C}_6 \mathrm{H}_5 \mathrm{CH}_2 \mathrm{Br}\)
(B) \(\mathrm{C}_6 \mathrm{H}_5 \mathrm{CH}\left(\mathrm{C}_6 \mathrm{H}_5\right) \mathrm{Br}\)
(C) \(\mathrm{C}_6 \mathrm{H}_5 \mathrm{CH}\left(\mathrm{CH}_3\right) \mathrm{Br}\)
(D) \(\mathrm{C}_6 \mathrm{H}_5 \mathrm{C}\left(\mathrm{CH}_3\right)\left(\mathrm{C}_6 \mathrm{H}_5\right) \mathrm{Br}\)

Read the passage carefully and answer the questions
The carbonyl group of aldehydes and ketones is highly polar. The positively charged carbon is readily attacked by electron-rich nucleophile and the negatively charged oxygen atom is attacked by an electro-deficient electrophile. Aldehydes and ketones undergo nucleophilic addition reactions in the presence of acid or a base. The mechanism involves attack of a nucleophile on the electron deficient carbonyl carbon to form a tetrahedral intermediate. A new bond is formed between the carbon and oxygen. Protonation of the anion furnished by the reaction medium yields neutral addition product. The addition product is same whether the reaction is catalyzed by acid or a base. For example in the presence of base aldehydes and ketones react with hydrogen cyanide to form cyanohydrin.
Which of the following compounds will undergo nucleophilic addition readily?

Which of the following hormone is released by pancreas and regulates body metabolic pathway?

Appearance of resistant organisms in a time scale of months or years, by the excessive use of antibiotics is an example of which of the following?

Which of the following statements are correct ?
(A) Determinant is a square matrix
(B) Determinant of a matrix of order \(3 \times 3\) is \(a_{11} c_{11}+a_{12} c_{21}+a_{13} c_{31}\left(a_{i j}=\right.\) element, \(c_{i j}=\) cofactor \()\)
(C) Determinant is a number associated with a matrix
(D) Determinant is a number associated with a square matrix
(E) Determinant of a matrix of order \(3 \times 3\) is \(a_{11} c_{11}+a_{12} c_{12}+a_{13} c_{13}\), where \(a_{i j}\) is the element, while \(c_{i j}\) is its corresponding cofactor
Choose the correct answer from the options given below :

In a Young's double slit experiment, the \( n^{\text{th}} \) bright fringe for a light of wavelength 5000 \( \text{\AA} \) coincides with the \( (n+1)^{\text{th}} \) bright fringe for light of wavelength 4000 \( \text{\AA} \). The value of \( n \) is :

The window of the house is in the form of a rectangle surmounted by a semi-circular portion, having a perimeter of 10 m as shown in figure.

If \(x\) and \(y\) represent the length and breadth of rectangular region the whole area of window is maximum, then value of \(x\) is :

In a kilometer race, \(A\) beats \(B\) by 50 meters or by 5 seconds, then the time taken by \(A\) to complete the race is

The chemical composition of Tollens' reagent is