Which of the following cannot be explained by the open chain structure of glucose?

Which of the following compounds will give the Hell-Volhard-Zelinsky reaction?

Lustre, electrical and thermal conductivity of metals can be explained by the theory of :

Which of the following statement is \text{\textbf\{incorrect\}?}

The minimum concentration of an electrolyte in millimoles per litre which is required to cause the precipitation of a sol in two hours is called as:

Which of the following combination is stored in animals ?
(A) Amylose
(B) Cellulose
(C) Amylopectin
(D) Glycogen
(E) Lactose
Choose the correct answer from the options given below :

The compound which will undergo Hoffmann Bromamide degradation

Let A = {1, 2, 3}. The number of equivalence relations containing (1, 3) is

When a snapdragon plant homozygous for red flower (RR) is crossed with another plant bearing white flowers, (rr) what colour will be observed in flowers of \(F_1\) generation?

The rate constant for a first order reaction becomes 2 times when the temperature is raised from 330 K to 380 K . Then the energy of activation for the reaction will be:\[[\log 2=0.3010]\]

If \(\left[\begin{array}{cc}x-y & t \\ 2 x-y & w\end{array}\right]=\left[\begin{array}{cc}-1 & 2 \\ 0 & 1\end{array}\right]\), then \(2 x+y+3 t+w\) is equal to

Read the passage carefully and answer the questions:
The degeneracy of the \(d\) orbitals has been removed due to ligand electron-metal electron repulsions in the octahedral comples to yield three orbitals of lower energy, \(t_{2 g}\) set and two orbitals of higher energy, \(e_g\) set. This splitting of the degenerate levels due to the presence of ligands in a definite geometry is termed as crystal field splitting and the energy separation is denoted by \(\Delta_0\). Thus energy of the two \(e_g\) orbitals will increase by \((3 / 5) \Delta_0\) and that of three \(t_{2 g}\) will decrease by \((2 / 5) \Delta_0\). The crystal field splitting \(\Delta_0\) depends upon the field produced by the ligand and charge on the metal ion. Some ligands are able to produce strong fields, in which case the splitting will be large, whereas others produce weak fields and consequently result in small splitting of \(d\) orbitals. Relative magnitude of crystal field splitting energy \(\Delta_{\circ}\) and pairing energy, \(P\) (energy required for electron pairing in a single orbital) determine the formation of low spin ( \(\Delta_0>P\) ) or high spin ( \(\Delta_0<P\) ) complex. In tetrahedral coordination entity formation, the \(d\)-orbital splitting is inverted and is smaller as compared to the octahedral field splitting. The crystal field theory attributes the colour of the complex to \(d-d\) transition of the electron. The colour of the coordination compounds depends on the crystal field splitting. In the absence of ligand, crystal field splitting does not occur and hence the substance is colourless.
Choose the correct order of the ligands in their increasing crystal field splitting:

The least distance of distinct vision of a person is 50 cm. He wants to read a book placed at 25 cm. The focal length of the spectacles would be :