Head to Head Group Electronegativity | Let's Crack IIT JAM | Paras Sharma #Shorts

Identification of +m & -m groups : If the first atom of the group has lone pair or negative charge shows +m effect. +m group increases electron density at ortho and para position of benzene ring. If the group has vacant p- orbital on first atom, also a multipal bonded group in which second atom is more electronegative than the first then it shows -m effect. -m group decreases electron density of ortho and para position of benzene ring. Identify which of following group/s show -m effect when attached with benzene ring.

Identification of +m & -m groups : If the first atom of the group has lone pair or negative charge shows +m effect. +m group increases electron density at ortho and para position of benzene ring. If the group has vacant p- orbital on first atom, also a multipal bonded group in which second atom is more electronegative than the first then it shows -m effect. -m group decreases electron density of ortho and para position of benzene ring. Which of the following compound/s have more electron density than

1. Until the MBA arrived on the scene the IIT graduate was king A. A degree from one of the five IIT's was a passport to a well-payingjob, great prospects abroad and, for some, a decent dowry to boot. B. From the day he or she cracked the joint entrance exam, the IIT student commanded the awe of neighbours and close relatives. C. IIT students had, meanwhile, also developed their own special culture, complete with lingo and attitude, which they passed down. D. True, the success stories of IIT graduates are legion and they now constitute the cream of the Indian diaspora. 6. But not many alumni would agree that the IIT undergraduate mindset merits a serious psychological study, let alone an interactive one.

The head of cockroach is formed by the fusion of six segments and shows great mobility in all directions due to a flexible neck. The neck is a short extension of

A fair coin is tossed 10 xx.Let p be the probability of getting a head in the hird trial (but not before) and let q be the probability of getting the head after the second trial (but not in the first two trials) then (p)/(q) is very close to a) (1)/(4) b) (1)/(2) c) 2 d ) 4

An unbiased coin and a dice is rolled.Let A denotes to get a head on coin and B denotes to get a number 3 on dice.Prove that these two events are independent

Three players A, B, C toss a coin in turn till head shows. Let p be the probability that the coin shows a head. Let alpha,beta,gamma be respectively the probabilities that A, B and C get first head then

A certain coin lands head with probability p. Let Q denote the probability that when the coin is tossed fourxx the number of heads obtained is either 0 or 2 or 4. Then

Three players A,B and C toss a coin cyclically in that order (i.e. A,B,C,A,B,C,A,B,……) till a head shows. Let p be the probability that the coin shows a head. Let alpha,beta and gamma be, respectively, the probabilities that A,E and C gets the first head. Prove that beta=(1-p)alpha Determine alpha,beta and gamma (in terms of p).

Which principle of management envisages that each group of activities having the same objective, must have one head and one plan? Explain the principle with suitable example