NTA JEE Main 27th July 2021 Shift 2

If the Thomson model of the atom was correct, then the result of Rutherford's gold foil experiment would have been:

The CORRECT order of first ionisation enthalpy is:

The number of neutrons and electrons, respectively, present in the radioactive isotope of hydrogen is:

Match List - I with List II:
List-I         List-II
a. Li       i.   photoelectric cell
b. Na     ii.  absorbent of CO$$_2$$
c. K       iii. coolant in fast breeder nuclear reactor
d. Cs     iv.  treatment of cancer
              v.  bearings for motor engines
Choose the correct answer from the options given below:

Which one of the following set of elements can be detected using sodium fusion extract?

Given below are two statements:
Statement I : Hyperconjugation is a permanent effect.
Statement II : Hyperconjugation in ethyl cation $$\left(CH_3 - \overset{+}{CH_2}\right)$$ involves the overlapping of $$C_{sp^2} - H_{1s}$$ bond with empty 2p orbital of other carbon.
Choose the correct option:

The correct sequence of correct reagents for the following transformation is:-

Match List - I with List - II:
List - I (compound)                       List - II (effect/affected species)
a. Carbon monoxide                   i.    Carcinogenic
b. Sulphur dioxide                       ii.   Metabolized by pyrus plants
c. Polychlorinated biphenyls     iii.  Haemoglobin
d. Oxides of Nitrogen                 iv.  Stiffness of flower buds
Choose the correct answer from the options given below:

Select the correct statements.
(A) Crystalline solids have long range order.
(B) Crystalline solids are isotropic.
(C) Amorphous solid are sometimes called pseudo solids.
(D) Amorphous solids soften over a range of temperatures.
(E) Amorphous solids have a definite heat of fusion.
Choose the most appropriate answer from the options given below.