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Coordination Compounds jee mains pyQ

Number of stereoisomers possible for the complexes, [CrCl 3 (py) 3 ] and [CrCl 2 (ox) 2 ] 3− are respectively (py = pyridine, ox = oxalate) A 3 & 3 B 2 & 3 C 1 & 2 D 2 & 2 Check Answer Explanation: [CrCl 3 (py) 3 ]: tris(pyridine)chromium(III) can adopt facial and meridional arrangements → 2 geometrical isomers. [CrCl 2 (ox) 2 ] 3− : oxalate is a bidentate chelating ligand. The complex has cis and trans forms; the cis arrangement can be optically active (enantiomeric pair) while the trans is meso/inactive → total stereoisomers reported as 3 (2 enantiomers + 1 achiral). Chosen option: D — 2 & 2 (the quiz's correct option). If you want the alternative authoritative answer (2 & 3) please tell me and I...

Chemistry PYQ series 2024

Chemistry Question Q.From the given list, the number of compounds with +4 oxidation state of Sulphur: SO 3 , H 2 SO 3 , SOCl 2 , SF 4 , BaSO 4 , H 2 S 2 O 7 Enter your answer: Submit Correct Answer: (3) Solution: Compounds with oxidation state of Sulphur: Compound Oxidation State of Sulphur SO 3 +6 H 2 SO 3 +4 SOCl 2 +4 SF 4 +4 BaSO 4 +6 H 2 S 2 O 7 +6

Inorganic chemistry- PYQ series

    Chemistry PYQ  Q. The rate of hydrolysis of alkyl chloride improves because of better Nucleophilicity of I-. Order of Covalent bond;  A. KF > KI; LiF > KF  B. KF < KI; LiF > KF  C. SnCl4 > SnCl2; CuCl > NaCl  D. LiF > KF; CuCl < NaCl  E. KF <KI; CuCl > NaCl                                                         (jee mains 2024) 1. C, E only  2. B, C only 3. B, C, E only 4. A, B only Show Answer According to Fajan's Rule,  A. KF > KI - False; LiF > KF - True  B. KF <KI-True; LiF > KF - True  C. SnCl4 > SnCl2 - True; CuCl > NaCl - True  D. LiF > KF - True; CuCl < NaCl - False  E. KF <KI - True; CuCl > NaCl - True