When the electronic configuration of a transition metal element \(X\) in +3 oxidation state is \([ Ar ] 3 d^5\), what is its atomic number?

Glucose gets oxidised to gluconic acid on reaction with bromine water. This indicates the presence of :

The nomenclature of the complex \(\left[ CuCl _2\left( CH _3 NH _2\right)_2\right]\) is

Which one of the following has the lowest melting point ?

Molecules in solids are held together by dipole - dipole interactions. Identify the polar molecules from the following.
A. Solid \(SO_2\)
B. \(NH_3\)
C. \(Cl_2\)
D. \(HCl\)
E. \(He\)
Choose the correct answer from the options given below:

Match the type of ligands given in List-I with appropriate examples given in List-II

List-I (Ligands)	List-II (Examples)
(A). Ambidentate	(I). thiocyanato
(B). Unidentate	(II). water
(C). Didentate	(III). oxalate
(D). Polydentate	(IV). ethylenediaminetetraacetate

Choose the correct answer from the options given below:

Read the passage carefully and answer the questions.
Amines are considered to be derivatives of ammonia obtained by replacement of hydrogen atoms with alkyl or aryl groups. They are usually prepared from nitro compounds, halides, amides, imides etc. The presence of hydrogen bonding influences its physical properties. In alkylamines, a combination of electron releasing steric and hydrogen bonding factors influences the stability of substituted ammonium cations in protic polar solvents and thus affects the basic nature of amines. Alkyl amines are found to be stronger bases than ammonia which is more basic than water. Primary and secondary amines are engaged in intermolecular association due to hydrogen bonding. This intermolecular association is more in primary amines than in secondary amines. Tertiary amines do not have intermoleulcar association due to the absenceof hydrogen atom available for hydrogen bonding. Thus, the boiling point of amines depends on hydrogen bonding. In aromatic amines, electron releasing and withdrawing groups increase and decrease their basic character. Aryl diazonium salts usually obtained from arylamine undergo replacement of the diazonium group with a variety of nucleophile. Their coupling reaction of aryl diazonium salts with phenol or arylamine results in formation of dyes.
Complete the reaction by giving the final product:
Chloroethane + ethanolic (NaCN) + LiAlH\(_4\) \(\rightarrow\) ?

Which of the following reactions are correct?
A. \(R - NO _2 \xrightarrow{ KMnO _4 / KOH } RNH _2\)
B. \(R - NO _2 \xrightarrow{ Sn / HCl } RNH _2\)
C. \(RCN \xrightarrow{ H _2 O / H ^{+}} RCH _2 NH _2\)
D. \(RCN \xrightarrow{ H _2 / Pd } RCH _2 NH _2\)
E. \(RCONH _2 \xrightarrow{\text { (i) } LAIH _4}{ }_4\) (ii) \(H _2 O RCH _2 NH _2\)
Choose the correct answer from the options given below:

If an asset costs Rs. 50,000 with an estimated useful life of 6 years and a scrap value of Rs. 5000. Then by using a linear depreciation method, the annual depreciation of the asset will be:

Arrange the following compounds in the increasing order of their acidic strength :
(A) 3,5-dinitrophenol
(B) Propan-1-ol
(C) 2,4,6-trinitrophenol
(D) 3-nitrophenol
(E) 4-methyl phenol
Choose the correct answer from the options given below :

Addition of HCN to carbonyl group results in formation of:

Aqueous \(CuSO _4\) solution gives green precipitate of \(( X )\) with aqueous KF.
Correct formula of X is:

Fructose is a ketohexose. The keto group is positioned at which carbon: