NTA JEE Main 1st September 2021 Shift 2
For the following questions answer them individually
NTA JEE Main 1st September 2021 Shift 2 - Question 31
Number of paramagnetic oxides among the following given oxides is _________.
Li$$_2$$O, CaO, Na$$_2$$O$$_2$$, KO$$_2$$, MgO and K$$_2$$O
NTA JEE Main 1st September 2021 Shift 2 - Question 32
Hydrogen peroxide reacts with iodine in basic medium to give:
NTA JEE Main 1st September 2021 Shift 2 - Question 33
The potassium ferrocyanide solution gives a Prussian blue colour, when added to:
NTA JEE Main 1st September 2021 Shift 2 - Question 34
Which one of the following compounds is aromatic in nature?
NTA JEE Main 1st September 2021 Shift 2 - Question 35
The stereoisomers that are formed by electrophilic addition of bromine to trans-but-2-ene is/are:
NTA JEE Main 1st September 2021 Shift 2 - Question 36
In the following sequence of reactions, C$$_3$$H$$_6$$ $$\xrightarrow{H^+/H_2O}$$ A $$\xrightarrow[dil KOH]{KIO}$$ B + C. The compounds B and C respectively are:
NTA JEE Main 1st September 2021 Shift 2 - Question 37
Water sample is called cleanest on the basis of which one of the BOD values given below:
NTA JEE Main 1st September 2021 Shift 2 - Question 38
Which one of the following given graphs represents the variation of rate constant (k) with temperature (T) for an endothermic reaction?
NTA JEE Main 1st September 2021 Shift 2 - Question 39
Match List - I with List - II.
List-I (Colloid Preparation Method) List-II (Chemical Reaction)
(a) Hydrolysis (i) 2AuCl$$_3$$ + 3HCHO + 3H$$_2$$O $$\rightarrow$$ 2Au(sol) + 3HCOOH + 6HCl
(b) Reduction (ii) As$$_2$$O$$_3$$ + 3H$$_2$$S $$\rightarrow$$ As$$_2$$S$$_3$$(sol) + 3H$$_2$$O
(c) Oxidation (iii) SO$$_2$$ + 2H$$_2$$S $$\rightarrow$$ 3S(sol) + 2H$$_2$$O
(d) Double Decomposition (iv) FeCl$$_3$$ + 3H$$_2$$O $$\rightarrow$$ Fe(OH)$$_3$$(sol) + 3HCl
Choose the most appropriate answer from the options given below:
NTA JEE Main 1st September 2021 Shift 2 - Question 40
Calamine and Malachite, respectively, are the ores of:
