JEE Main 2020 (Online) 2nd September Morning Slot | Redox Reactions Question 44 | Chemistry

JEE Main 2020 (Online) 2nd September Morning Slot

MCQ (Single Correct Answer)

-1

While titrating dilute HCl solution with aqueous NaOH, which of the following will not be required?

Pipette and distilled water

Clamp and phenolphthalein

Burette and porcelain tile

Bunsen burner and measuring cylinder

JEE Main 2020 (Online) 9th January Morning Slot

MCQ (Single Correct Answer)

-1

The compound that cannot act both as oxidising and reducing agent is :

H₃PO₄

H₂SO₃

H₂O₂

HNO₂

JEE Main 2020 (Online) 7th January Evening Slot

MCQ (Single Correct Answer)

-1

The redox reaction among the following is :

reaction of H₂SO₄ with NaOH.

formation of ozone form atmosphere oxygen in the presence of sunlight.

combination of dinitrogen with dioxygen at 2000 K

reaction of [Co(H₂O)₆]Cl₃ With AgNO₃

JEE Main 2020 (Online) 7th January Morning Slot

MCQ (Single Correct Answer)

-1

Oxidation number of potassium in K₂O. K₂O₂ and KO₂ respectively is :

+1, +2 and + 4

+1, +1 and + 1

+2, +1 and $$ + {1 \over 2}$$

+1, +4, and +2

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