When methyl bromide is treated with sodium tert-butoxide, the compound formed is:

When a ferromagnetic substance is placed in a magnetic field, it becomes a permanent magnet because:

Acylation of aniline with acetic anhydride gives :

Arrange the following compounds in decreasing order of their boiling points:
A. Ethoxyethane
B. n-Butane
C. Pentanal
D. Pentan-1-ol
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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.
Propyne on hydration in presence of mercury ions produce

On mixing A and B, a warm solution is obtained which is \textbf{not} true for the above solution?

Match List - I with List - II.

List - I	List - II
A. Simple and face centred cubic	I. \(\text{a} = \text{b} = \text{c}\)
B. Cubic and rhombohedral	II. \(\alpha = \beta = \gamma = 90°\)
C. Cubic and tetragonal	III. have only two crystallographic angle of \(90°\)
D. Hexagonal and monoclinic	IV. belong to the same crystalline system

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Malignant malaria is caused by -

If \(A=\left[\begin{array}{lll}2 & 0 & 0 \\ 0 & 2 & 0 \\ 0 & 0 & 2\end{array}\right]\) then \(A^5\) is :

The maximum torque acting on a coil having an effective area \( 0.04 \text{ m}^2 \) and carrying current of \( 100 \mu A \) is \( 4 \times 10^{-8} \text{ N m} \), when placed in a magnetic field. The magnitude of the magnetic field is

The refractive index of a glass prism is minimum for

If the matrix \(\left(\begin{array}{ccc}2 & 4 & 5 \\ 4 & 2 & 3 \\ K & 3 & 2\end{array}\right)\) is a symmetric matrix, then the value of \(K\) is :

Two cards are drawn with replacement from a pack of 52 cards.
The probability distribution of number of aces is: