\(\Delta_o\) for a complex \([ML_6]^{3-}\) is \(18000\) \(cm^{-1}\). \(\Delta_t\) for \([ML_4]\) would be :

Oxidation of acetaldehyde with \(SeO_2\) forms:

Ambidentate ligand among the following is
A. NCS
B. \(\text{C}_2\text{O}_4^{2-}\)
C. SCN
D. \(\text{H}_2\text{NCH}_2\text{CH}_2\text{NH}_2\)
E. \(\text{NO}_2\)
Choose the correct answer from the options given below :

Read the passage carefully and answer the questions
The coordination compounds are of great importance. These compounds are widely present in the mineral, plants and animal world and are known to play many important functions in the area of analytical chemistry, metallurgy, biological systems, industry and medicine. For example, coordination compounds find use in many qualitative and quantitative chemical analysis. Some important metal extraction and purification make use of complex formation. Hardness of water can be estimated by stable complex formation of Ca\(^{2+}\) and Mg\(^{2+}\)
Wilkinson catalyst used for hydrogenation of alkenes is a complex of ___________.

Based on their rate laws, arrange the following reactions in the decreasing sequence of the reaction order.
(A)Rate \(=k[A]^{3 / 2}[B]^{-1}\)
(B)Rate \(=k\left[ CHCl _3\right]\left[ Cl _2\right]^{1 / 2}\)
(C)Rate \(=k\left[ CH _3 COOC _2 H _5\right]\left[ H _2 O \right]^0\)
(D)Rate \(=k[A]^{1 / 2}[B]^{3 / 2}\)
Choose the correct answer from the options given below:

Answer the question on basis of passage given below :
The noble gases He to Rn have close shell configuration and are monoatomic gases under normal conditions. Though mostly unreactive, but direct reaction of Xe with \(F_2\) leads to a series of compounds with Xe oxidation numbers \(+2,+4\) and +6 . When certain compounds like phenol and quinol are crystallised in the presence of noble gas such as \(Ar , Kr\) and Xe a category of compound called clathrates are formed. In these the noble gas atoms are trapped in the cavities of the crystal lattices. The compounds which crystallise are known as hosts (H) while the noble gas atoms are called guests ( \(G\) ). The general formula of a clathrate compound is \(n H m G\), where \(n\) is the number of host molecules and m is the number of atoms a molecule of guest.
In what molar ratio must Xe and \(F_2\) be taken to give \(XeF _4\) ?

Name a transition element which does not exhibit variable oxidation states

Match List I with List II

LIST I	LIST II
A. One species is benefitted and other harmed.	I. Amensalism
B. One species is benefitted and other neither harmed nor benefitted.	II. Parasitism
C. Both the interacting species are benefitted.	III. Commensalism
D. One species is harmed and other remains unaffected.	IV. Mutualism

The simple random sample consists of six observations: \(5, 8, 10, 7, 10, 14\). The point estimate of the population mean is:

During gamete formation, the alleles of a gene do not show blending and both characters are recovered in F2 generation. This is called :-

Which of the following statements is true?

In a circuit, resistance \( R_1 \) is connected in series with the parallel combination of resistances \( R_2 \) and \( R_3 \). The currents passing through the resistances \( R_1, R_2 \) and \( R_3 \) are \( I_1, I_2 \) and \( I_3 \), respectively. What will be the ratio \( \frac{I_3}{I_1} \) of currents in terms of the resistances connected in the circuit?

An electric source has an emf of 130 V and a terminal voltage of 110 V. If it supplies a terminal current of 20 A, its internal resistance will be