NTA JEE Main 10th January 2019 Shift 1

Instructions

For the following questions answer them individually

NTA JEE Main 10th January 2019 Shift 1 - Question 31


Which of the graphs shown below does not represent the relationship between incident light and the electron ejected from metal surface?

NTA JEE Main 10th January 2019 Shift 1 - Question 32


The type of hybridization and no. of lone pair(s) of electron of Xe in $$XeOF_4$$, respectively, are:

NTA JEE Main 10th January 2019 Shift 1 - Question 33


Two pi and half sigma bonds are present in:

NTA JEE Main 10th January 2019 Shift 1 - Question 34


A process has $$\Delta H = 200$$ J mol$$^{-1}$$ and $$\Delta S = 40$$ J K$$^{-1}$$ mol$$^{-1}$$. Out of the values given below choose the minimum temperature above which the process will be spontaneous:

NTA JEE Main 10th January 2019 Shift 1 - Question 35


What are the values of $$\frac{K_p}{K_c}$$ for the following reactions at 300 K respectively?
(At 300 K, RT = 24.62 dm$$^2$$ atm mol$$^{-1}$$)
$$N_2(g) + O_2(g) \rightleftharpoons 2NO(g)$$
$$N_2O_4(g) \rightleftharpoons 2NO(g)$$
$$N_2(g) + 3H_2(g) \rightleftharpoons 2NH_3(g)$$

NTA JEE Main 10th January 2019 Shift 1 - Question 36


A mixture of 100 m mol of $$Ca(OH)_2$$ and 2 g of sodium sulphate was dissolved in water and the volume was made up to 100 mL. What is the mass of calcium sulphate formed and the concentration of $$OH^-$$ in resulting solution, respectively? (Molar mass of $$Ca(OH)_2$$, $$Na_2SO_4$$ and $$CaSO_4$$ are 74, 143 and 136 g mol$$^{-1}$$, respectively; $$K_{sp}$$ of $$Ca(OH)_2$$ is $$5.5 \times 10^{-6}$$)

NTA JEE Main 10th January 2019 Shift 1 - Question 37


The chemical nature of hydrogen peroxide is:

NTA JEE Main 10th January 2019 Shift 1 - Question 38


The total number of isotopes of hydrogen and number of radioactive isotopes among them, respectively, are:

NTA JEE Main 10th January 2019 Shift 1 - Question 39


The metal used for making X-ray tube window is:

NTA JEE Main 10th January 2019 Shift 1 - Question 40


The electronegativity of aluminum is similar to:

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