NTA JEE Main 4th April 2015 Offline
For the following questions answer them individually
NTA JEE Main 4th April 2015 Offline - Question 41
Assertion: Nitrogen and Oxygen are the main components in the atmosphere but these do not react to form oxides of nitrogen.
Reason: The reaction between nitrogen and oxygen requires high temperature.
NTA JEE Main 4th April 2015 Offline - Question 42
Sodium metal crystallizes in a body centred cubic lattice with a unit cell edge of 4.29 $$\mathring{A}$$. The radius of sodium atom is approximately:
NTA JEE Main 4th April 2015 Offline - Question 43
The vapour pressure of acetone at 20$$^\circ$$C is 185 torr. When 1.2 g of a non-volatile substance was dissolved in 100 g of acetone at 20$$^\circ$$C, its vapour pressure was 183 torr. The molar mass (g mol$$^{-1}$$) of the substance is:
NTA JEE Main 4th April 2015 Offline - Question 44
Two Faraday of electricity is passed through a solution of $$CuSO_4$$. The mass of copper deposited at the cathode is: (Atomic mass of Cu = 63.5 amu)
NTA JEE Main 4th April 2015 Offline - Question 45
Higher order (>3) reactions are rare due to:
NTA JEE Main 4th April 2015 Offline - Question 46
3 g of activated charcoal was added to 50 mL of acetic acid solution (0.06 N) in a flask. After an hour, it was filtered and the strength of the filtrate was found to be 0.042 N. The amount of acetic acid adsorbed (per gram of charcoal) is:
NTA JEE Main 4th April 2015 Offline - Question 47
In the context of the Hall-Heroult process for the extraction of Al, which of the following statements is false?
NTA JEE Main 4th April 2015 Offline - Question 48
Which among the following is the most reactive?
NTA JEE Main 4th April 2015 Offline - Question 49
Which one has the highest boiling point?
NTA JEE Main 4th April 2015 Offline - Question 50
Match the catalysts to the correct process.
Catalyst Process
A. $$TiCl_3$$ i. Wacker process
B. $$PdCl_2$$ ii. Ziegler-Natta polymerisation
C. $$CuCl_2$$ iii. Contact process
D. $$V_2O_5$$ iv. Deacon's process
