19,000+ solved questions for JEE Advanced, JEE Mains, NEET & IChO — with answers and expert explanations.
A 1.0 M with respect to each of the metal halide AX3, BX2 CX3 and DX2 is electrolysed using platinum electrodes. If The correct sequence in which the various metals are deposited at the cathode is
Assertion: Zinc can be used while copper cannot be used in the recovery of Ag from the complex [Ag(CN)₂]– Reason: Zinc is powerful reducing agent than copper.
Give the correct order of initials T or F for the following statements. Use T if the statement is true and F if it is false. (I) Sulphide ions reacts with Na₂ [Fe(CN)₅(NO)] to form a purple-coloured compound Na₄ [Fe(C…
Philosopher’s wool when heated with BaO at 1100ºC gives the compound :
Spiegeleisen is an alloy of :
Sodium thiosulphate, Na₂S₂O₃. 5H₂O is used in photography to :
Assertion : The melting point of Mn is more than that of Fe. Reason : Mn has higher number of unpaired e– than Fe in atomic state.
Assertion : Hg is the only metal that is liquid at 0ºC. Reason : It has a very high I.P. and weak metallic bond.
The IUPAC name for [Be₄O(CH₃COO)₆] is
Which of the following coordination compounds would exhibit optical isomerism?
For the square planar complex [M (a) (b) (c) (d)] (where, M = central metal and a, b, c and d are monodentate ligands), the number of possible geometrical isomers are
Consider the following complex ions, P, Q and R. P = [FeF₆]3- , Q = [V(H₂O)₆]2+ and R = [Fe(H₂O)₆]2+ The correct order of the complex ions, according to their spin-only magnetic moment values (in BM) is
Among [NiCO)₄], [NiCl₄]2–, [Co(NH₃)₄Cl₂] Cl, Na₃ [CoF₆], Na₂O₂ and CsO₂, the total number of paramagnetic compounds is
In Fe(CO)₅, the Fe – C bond possesses
Among [NiCO)₄], [NiCl₄]2–, [Co(NH₃)₄Cl₂] Cl, Na₃ [CoF₆], Na₂O₂ and CsO₂, the total number of paramagnetic compounds is
Which of the following compounds shows optical isomerism ?
Which of the following has an optical isomer ?
Which one of the following has largest number of isomers? (R = alkyl group, en = ethylenediamine)
Which one of the following complex ions has geometrical isomers ?
Exhibits temperature dependent magnetic behaviour (paramagnetic/diamagnetic) the coordination geometries of Ni²⁺ in the paramagnetic and diamagnetic states are respectively
Match each set of hybrid orbitals from LIST-I with complex(es) given is LIST-II LIST-I LIST-II (P) dsp2 (1) [FeF₆]4– (Q) sp3 (2) [Ti(H₂O)₃Cl₃] (R) sp3d2 (3) [Cr(NH₃)₆]3+ (S) d2sp3 (4) [FeCl₄]2– (5) Ni(CO)₄ (6) [Ni(CN)…
Match the list I and list II and pick the correct matching from the codes given below: List I List II (Complex) (Structure and magnetic moment) A. [Ag(NH₃)₂]+ 1. Square planar and 1.73 BM B. [Co(NH₃)₆]3+ 2. Linear and…
What is (are) number(s) of unpaired electrons in the square planar [Pt(CN)₄]2– ion?
Which of the following is not considered as an organometallic compound?
Four transition metal octahedral complexes, (the choice given below) low spin electron configurations arises only for