The IUPAC name of the following compound is

The zwitter ion formed in an aqueous solution of glycine is

Cellulose is a __________ polymer composed of __________ .

In the following sequence of reaction: \(CH _3 Br \xrightarrow{ KCN } A \xrightarrow{ H _3 O ^{+}} B \xrightarrow{ LiAH _4 / \text { ether }} C\)
The end product \((C)\) is

Which of the following compound(s) does not react with Fehling solution?
(A) \(CH _3 CHO\)
(B) \(Ph - CHO\)
(C) Glucose
(D)

choose the correct answer from the options given below:

The molecule with largest \(C - X\) bond length is

Read the passage below and answer the question:
The accumulation of molecular species at the surface rather than in the bulk of a solid or liquid is termed as adsorption. There are two types of adsorption. In physisorption, attractive forces are mainly Van der Waals while in chemical adsorption adsorbate is held with chemical bonds adsorbent. Adsorption increases with increase in pressure and decreases as temperature is increased.
Critical temperature of few gases are given SO2 (630К), СН4 (190K), H₂ (33K). What is the correct order of case of physi-adsorption of these gases?

The causes of biodiversity loss are:
(A) Habitat loss
(B) Invasion of alien species
(C) Co-extinction
(D) Endemism
Choose the correct answer from the options given below:

Three cells grouped together at the micropylar end and constitute ___________ in the embryo sac.

Which one of the following has a large reservoir of erythrocytes ?

The drift speed of electrons in a conductor is estimated to be only a few \( \text{mm s}^{-1} \). But on closing a circuit, how current is established almost instantly in an electric circuit?

Arrange the given compounds in order of decreasing oxidation state of nitrogen:
A. \(N_2\)
B. \(NO\)
C. \(HNO_3\)
D. \(NH_4Cl\)
Choose the correct answer from the options given below:

Werner was the first to describe the bonding features in coordination compounds. But his theory could not answer basic questions like :
(i) Why only certain elements possess the remarkable property of forming coordination compounds ?
(ii) Why the bonds in coordination compounds have directional properties ?
(iii) Why coordination compounds have characteristics magnetic and optical properties ?Many approaches have been put forth to explain the nature of bonding in coordination compounds viz. Valence Bond Theory (VBT), Crystal Field Theory (CFT), Ligand Field Theory (LFT) and Molecular Orbital Theory (MOT).
We shall focus our attention on elementary treatment of the application of VBT and CFT to coordination compounds.
According to this theory, the metal atom or ion under the influence of ligands can use its ( \(n -1\) )d, ns np or ns, np, nd orbitals for hybridisation to yield a set of equivalent orbitals of definite geometry such as octahedral, tetrahedral, square planar and so on.
These hybridised orbitals are allowed to overlap with ligand orbitals that can donate electron pairs for bonding.
Predict the shape of \(\left[ Ni ( CO )_4\right]\) on the basis of VBT :