A group 15 element forms \( d\pi - d\pi \) bond with transition metals. It also forms a hydride, which is the strongest base among the hydrides of other group members that form \( d\pi - d\pi \) bonds. The atomic number of the element is …….
The total number of compounds from below when treated with hot KMnO4 giving benzoic acid is:
Given below are two statements:
Statement (I): are isomeric compounds. Statement (II): are functional group isomers.In the light of the above statements, choose the correct answer from the options given below:
The major product of the following reaction is:
Identify correct statements: (A) Primary amines do not give diazonium salts when treated with \({NaNO}_2\) in acidic condition. (B) Aliphatic and aromatic primary amines on heating with \({CHCl}_3\) and ethanolic \({KOH}\) form carbylamines. (C) Secondary and tertiary amines also give carbylamine test. (D) Benzenesulfonyl chloride is known as Hinsberg’s reagent. (E) Tertiary amines react with benzenesulfonyl chloride very easily. Choose the correct answer from the options given below:
An ideal gas undergoes a cyclic transformation starting from point A and coming back to the same point by tracing the path A→B→C→D→A as shown in the three cases below.Choose the correct option regarding \(\Delta U\):
Match List - I with List - II.
Choose the correct answer from the options given below:
Identify correct conversion during acidic hydrolysis from the following: (A) Starch gives galactose. (B) Cane sugar gives equal amount of glucose and fructose. (C) Milk sugar gives glucose and galactose. (D) Amylopectin gives glucose and fructose. (E) Amylose gives only glucose. Choose the correct answer from the options given below:
Identify the inorganic sulphides that are yellow in colour: (A) \( ({NH}_4)_2{S} \) (B) \( {PbS} \) (C) \( {CuS} \) (D) \( {As}_2{S}_3 \) (E) \( {As}_2{S}_5 \) Choose the correct answer from the options given below:
Given below are two statements: Statement (I): According to the Law of Octaves, the elements were arranged in the increasing order of their atomic number. Statement (II): Meyer observed a periodically repeated pattern upon plotting physical properties of certain elements against their respective atomic numbers. In the light of the above statements, Choose the correct answer from the options given below:
For bacterial growth in a cell culture, growth law is very similar to the law of radioactive decay. Which of the following graphs is most suitable to represent bacterial colony growth? Where \( N \) - Number of Bacteria at any time, \( N_0 \) - Initial number of Bacteria.
Identify product [A], [B], and [C] in the following reaction sequence.
A thin transparent film with refractive index 1.4 is held on a circular ring of radius 1.8 cm. The fluid in the film evaporates such that transmission through the film at wavelength 560 nm goes to a minimum every 12 seconds. Assuming that the film is flat on its two sides, the rate of evaporation is:
A bar magnet has total length \( 2l = 20 \) units and the field point \( P \) is at a distance \( d = 10 \) units from the centre of the magnet. If the relative uncertainty of length measurement is 1\%, then the uncertainty of the magnetic field at point P is:
Given below are two statements. One is labelled as Assertion (A) and the other is labelled as Reason (R). Assertion (A): Knowing the initial position \( x_0 \) and initial momentum \( p_0 \) is enough to determine the position and momentum at any time \( t \) for a simple harmonic motion with a given angular frequency \( \omega \). Reason (R): The amplitude and phase can be expressed in terms of \( x_0 \) and \( p_0 \). In the light of the above statements, choose the correct answer from the options given below:
are isomeric compounds. 
are functional group isomers.
