[Download PDF] NTA JEE Main 9th April 2017 Online Paper with Solutions

Instructions

For the following questions answer them individually

NTA JEE Main 9th April 2017 Online - Question 51

Adsorption of gas on a surface follows Freundlich adsorption isotherm. The plot of log $$\frac{x}{m}$$ versus log(P) gives a straight line with slope equal to 0.5, then:
($$\frac{x}{m}$$ is the mass of the gas adsorbed per gram of adsorbent)

Solution

NTA JEE Main 9th April 2017 Online - Question 52

The number of P $$-$$ OH bonds and the oxidation state of phosphorus atom in pyrophosphoric acid (H$$_4$$P$$_2$$O$$_7$$), respectively are:

Solution

NTA JEE Main 9th April 2017 Online - Question 53

The correct sequence of decreasing number of $$\pi$$-bonds in the structure of $$H_2SO_3$$, $$H_2SO_4$$ and $$H_2S_2O_7$$ is:

Solution

NTA JEE Main 9th April 2017 Online - Question 54

XeF$$_6$$ on partial hydrolysis with water, produces a compound X. The same compound X is formed when XeF$$_6$$ reacts with silica. The compound X is:

Solution

NTA JEE Main 9th April 2017 Online - Question 55

[Co$$_2$$(CO)$$_8$$] displays

Solution

NTA JEE Main 9th April 2017 Online - Question 56

In the following reaction sequence:

Compound I is

Solution

NTA JEE Main 9th April 2017 Online - Question 57

A compound of molecular formula C$$_8$$H$$_8$$O$$_2$$ reacts with acetophenone to form a single cross-aldol product in the presence of base. The same compound on reaction with concentrated NaOH forms benzyl alcohol as one of the products. The structure of the compound is: