NTA JEE Main 9th January 2020 Shift 2
For the following questions answer them individually
NTA JEE Main 9th January 2020 Shift 2 - Question 31
5g of zinc is treated separately with an excess of
(a) dilute hydrochloric acid and
(b) aqueous sodium hydroxide.
The ratio of the volumes of $$H_2$$ evolved in these two reactions is:
NTA JEE Main 9th January 2020 Shift 2 - Question 32
Among the statements (a) - (d), the correct ones are:
(a) Lithium has the highest hydration enthalpy among the alkali metals.
(b) Lithium chloride is insoluble in pyridine.
(c) Lithium cannot form ethynide upon its reaction with ethyne.
(d) Both lithium and magnesium react slowly with $$H_2O$$.
NTA JEE Main 9th January 2020 Shift 2 - Question 33
The reaction of $$H_3N_3B_3Cl_3(A)$$ with $$LiBH_4$$ in tetrahydrofuran gives inorganic benzene (B). Further, the reaction of (A) with (C) leads to $$H_3N_3B_3(Me)_3$$. Compounds (B) and (C) respectively, are:
NTA JEE Main 9th January 2020 Shift 2 - Question 34
Which of the following has the shortest C - Cl bond?
NTA JEE Main 9th January 2020 Shift 2 - Question 35
Which of the following reactions will not produce a racemic product?
NTA JEE Main 9th January 2020 Shift 2 - Question 36
The number of $$sp^2$$ hybrid orbitals in a molecule of benzene is:
NTA JEE Main 9th January 2020 Shift 2 - Question 37
Biochemical Oxygen Demand (BOD) is the amount of oxygen required (in ppm):
NTA JEE Main 9th January 2020 Shift 2 - Question 38
Amongst the following, the form of water with the lowest ionic conductance at 298K is:
NTA JEE Main 9th January 2020 Shift 2 - Question 39
The correct order of the spin-only magnetic moments of the following complexes is:
(I) $$[Cr(H_2O)_6]Br_2$$
(II) $$Na_4[Fe(CN)_6]$$
(III) $$Na_3[Fe(C_2O_4)_3]$$ $$(\Delta_0 \gt P)$$
(IV) $$(Et_4N)_2[CoCl_4]$$
NTA JEE Main 9th January 2020 Shift 2 - Question 40
The isomer(s) of $$[Co(NH_3)_4Cl_2]$$ that has/have a Cl - Co - Cl angle of 90$$°$$, is/are:
