Which is not the limitation of valence bond theory involving coordination compound.

The specific conductance of a decinormal KCl solution is \(0.0121 ohm ^{-1} cm^{-1}\) and the resistance was found to be 56 ohm . Cell constant for the reaction will be

Arrange the following in the decreasing order of basic strength in gas phase:
(A) \(C _2 H _5 NH _2\)
(B) \(\left( C _2 H _5\right)_2 NH\)
(C) \(\left( C _2 H _5\right)_3 N\)
(D) \(NH _3\)

If the concentration of a reactant is reduced to half, the rate of reaction becomes \(\frac{1}{4}\). What will be the order of reaction?

Answer the question on basis of passage given below :
The noble gases have closed shell electronic configuration and are monatomic gases under normal conditions. The low boiling points of lighter noble gases are due to the weak dispersion forces between the atoms and the absence of other inter atomic interaction. The direct reaction of xenon with fluorine leads to a series of compounds with oxidation numbers \(+2, +4\) and \(+6\).
\(\text{XeF}_4\) reacts violently with water to give \(\text{XeO}_3\). The compound of Xenon exhibit stereoisomerism and their geometries can be deduced considering the total number of electrons in the valence shell.
Structure of \(\text{XeO}_3\) is:

Read the passage carefully and answer the Questions
The term vitamin was coined from the word vital +amine since the earlier identified compounds had amino groups.
Later work showed that most of them didn't contain amino groups, so the letter "e" was dropped and ther term vitamin is used these days.
Vitamins are classified into two groups depending upon their solubility in water or fat. Fat soluble vitamins are soluble in fat and oils but insoluble in water. They are stored in liver and adipose (fat storing) tissues. Water-soluble vitamins are soluble in water. They must be supplied regularly in the diet as they are readily excreated in urine.
Deficiency of which vitamin causes scurvy?

The correct expression for osmotic pressure of the solution involving dissociation of the solute is

Let \(A=\{a, b, c\}\). Then number of relations containing \((a, b)\) and \((b, c)\) which are reflexive and transitive but not symmetric is :

If the points P, Q, R with position vectors \(5 \hat{i}+\lambda \hat{j}, 20 \hat{i}-\hat{j}\) and \(15 \hat{i}- 6\hat{j}\) respectively are colinear, then the value of \(\lambda\) is

Answer the question on the basis of passage given below:
Adsorption is the phenomenon of attracting and retaining the molecules of a substance on the surface of a solid resulting into a higher concentration on the surface than in the bulk. The substance adsorbed is known as adsorbate and the substance on which adsorption takes place is called adsorbent. In physisorption adsorbate is held to the adsorbent by weak van der Waals forces and in chemisorption by strong chemical bond.
In coagulation of a positive sol, the flocculating power will be in the order:
A. \(PO _4^{3-}\)
B. \(Cl ^{-}\)
C. \([ Fe ( CN )]^{3-}\)
D. \(SO _4^{2-}\)
Choose the correct answer from the options given below:

The differential equation representing the curve \(y=e^{2 x}(a+b x)\), where \(a, b\) are arbitrary constants is

Two sources of equal emf are connected in series. This combination is connected to an external resistance R.
The internal resistance of two sources are \( r_1 \) and \( r_2 \) (\( r_2 > r_1 \)).
If the potential difference across the source of internal resistance \( r_2 \) is zero, then R equals to:

Double fertilisation is unique to: