3,3,5-trimethylheptane

In the structure of 4 -Isoropyl- 2,4,5 -trimethylheptane, number of 1^(@),2^(@) & 3^(@) H's are respectively.

In the structure of 4 -Isoropyl- 2,4,5 -trimethylheptane, number of 1^(@),2^(@) & 3^(@) H's are respectively.

How many compounds formed monochlorination of 2,2,6-trimethylheptane

Write the structural formula of the following compounds: 4-ethyl-2, 2, 6-trimethylheptane

If the mode of observations 5,4,4,3,5,x,3,4,3,5,4,3,5 is 3, then median of the observation is

If the mode of observations 5,4,4,3,5,x,3,4,3,5,4,3,5 is 3, then median of the observation is

If A = {:[(2//3, 1 , 5//3),(1//3, 2//3, 4//3),(7//3, 2, 2//3)] and B = [(2//5, 3//5, 1),(1//5, 2//5, 4//5),(7//5,6//5,2//5)] then compute 3A + 5B.

If A=[[2/3, 1,5/3],[1/3, 2/3, 4/3],[7/3, 2, 2/3]] and B=[[2/5, 3/5, 1],[1/5, 2/5, 4/5],[7/5, 6/5, 2/5]] then compute 3A-5B

If A = [[2/3,1,5/3],[1/3,2/3,4/3],[7/3,2,2/3]] and B = [[2/5,3/5,1],[1/5,2/5,4/5],[7/5,6/5,2/5]] , then compute 3A-5B

How many 3 s are immediately preceded by 9 but not immediately followed by 5 in the following number series? 9 3 4 5 9 3 6 4 3 9 3 3 5 3 9 5 3 9 3 7 5 7 5 9 3 9 5