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JEE Main Mock 107
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Question 1
In an octahedral structure the pair of d-orbitals involved in d2sp3 hybridization is -
Question 2
Which ion produces a small crystal field splitting (a weak ligand field):
Question 3
The number of isomers of dibromoderivative of an alkene (molar mass 186 g mol–1) is -
Question 4
Most stable carbocation is:
Question 5
4 coins are tossed. Then the probability of getting at least one head is –
Question 6
Three numbers whose sum is 15 are in A.P. If 1,4,19 be added to them respectively the resulting numbers are in G.P. Then the numbers are-
Question 7
If a, b, c, d are in G.P. then a + b, b + c, c + d are in-
Question 8
The coefficient of a8b6c4 in the expansion of (a + b + c)18 is-
Question 9
4 charges are placed each at a distance ‘a’ from the origin. The dipole moment of configuration is-
Question 10
A positive charge q is given to each plate of a parallel plate air capacitor having area of each plate A and separation between them, d -
Question 11
Two insulated rings, one slightly smaller diameter than the other, are suspended along their diameter as shown, initially the planes of the rings are mutually perpendicular when a steady current is set up in each of them.
Question 12
Curie temperature is the temperature above which
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Jan 19JEE & BITSAT