Construct a simulated 1h nmr spectrum for 2-chloropropane by dragging and dropping the appropriate splitting patterns into the boxes on the chemical shift baseline, and by dragging integration values into the small box above each signal. items may be used more than once. peak heights do not represent integration.

it has signals at 1.5 and about 3.8 ppm

1.5 ppm (6H, doublet) and 3.8 ppm (1H, septet)

Explanation:

2-chloropropane is a symmetrical molecule along the second carbon that has chlorine. Essentially, the protons of the two methyl groups on both sides of the vertical symmetry plane are equivalent producing a peak at a lower ppm value of 1.5 ppm for a total of 6 protons (3 protons in each methyl group). This is simply because these protons are distant from the strongly electronegative chlorine atom and are, therefore, more shielded.

The middle carbon already has 3 bonds and only contains 1 proton having a high ppm value of 3.8 ppm due to being attached to the strongly deshielding (electron-withdrawing) chlorine directly.

The methyl protons would exhibit a doublet, as they have only one proton neighbour at the second carbon (according to the n + 1 rule, n neighbors produce n + 1 splitting). The proton at the second carbon would split into septet, as it has a total of 6 neighboring protons. That said, we have two peaks:

1.5 ppm (6H, doublet) and 3.8 ppm (1H, septet).

The diagram is attached below:

as given the equation is

2al + 6 hcl > 2 alcl3 + 3 h2(g)

as per equation two moles of aluminum reacts with six moles of hcl to give two moles of alcl3 and three moles of hydrogen gas

given: three moles of al are present and 7 moles of hcl

for three moles of aluminum nine moles of hcl will be required

however as 7 moles of hcl are present so the limiting reagent is hcl

hcl is going to decide the number of moles of product formed

when six moles of hcl are present = 3 moles of h2 are formed

when one mole of hcl is present == 3/6 mole sof h2 will be formed

when 7 moles of hcl are present = 3 x 7/ 6 moles of h2 will be formed = 3.5 moles of h2