Important English Grammar Rules 4 for all SSC Exams By Nikhil sir

Sentence : Type & Parts || Day 1 || Class 10 English Grammar || UP Board Exam 2022

Coordination compounds plays many important roles in animals and plants. The are essential in the storage and transport of oxygen as electrons transfer agents as catalysts and in photosynthesis Wide range of application in daily life takes place through formation of complexes Photographic fixing qualitative and quantitative analysis purification of water metallurgical extraction are some specific worth mentioning The complex [Fe(H_(2)O)_(5)NO]^(2+) is formed in the brown ring test for nitrates when freshly prepared FeSO_(4) soultion is added to aqueous solution of NO_(3)^(Θ) followed by addition of conc. H_(2)SO_(4) Select correct statement about this complex (a) Colour change is due to charge transfer (b) It has iron in +1 oxidation state and nitrosyl as NO^(o+) (c ) It has magnetic moment of 3.87BM confirming three unpaired electrons in Fe (a) All the above are correct statements .

If the operation * is defined on the set Q - {0} of all rational numbers by the rule a * b=(a b)/4 for all a ,\ b in Q - {0} . Show that * is commutative on Qdot - {0}

Assertion: Synonyms are the most important of all rules of ICBN. Reason: Out of the two or more scientific names given to the organism, the oldest name is recognized as valid name and other names as synonyms