The correct IUPAC name of the compound given below


a) 2, 4, 4, 6, 6-pentamethyl octane
b) 2,3,3,7,7 - pentamethyl octane
c) 2,2, 6, 6,7 - pentamethyl octane
d) 2,3,3, 6, 6 - pentamethyl octane

The IUPAC name of the given structure Bicylo [3, 2, 1) octane Bicylo [3, 2, 2] octane Spiro (3, 2, 1) octane Bicylo [5, 2, 1) octane

The number of 1^(@), 2^(@) , and 3^(@) H atoms in 2,5,6-trimethy1 octane, respectively,is

The direction cosines of the ray from (0,0,0) to (2,-3,6) are (A) -2/7,3/7,-6/7 (B) 2/7,37,6/7 (C) -2/7,-3/7,6/7 (D) 2/7,-3/7,6/

If the coordinates of one end of a diameter of a circle are (2,3) and the coordinates of its centre are (-2,5), then the coordinates of the other end of the diameter are (-6,7) (b) (6,-7)( c) (6,7)(d)(-6,-7)