JEE Main 2021 (Online) 27th July Evening Shift | Practical Organic Chemistry Question 63 | Chemistry

To an aqueous solution containing ions such as Al³⁺, Zn²⁺, Ca²⁺, Fe³⁺, Ni²⁺, Ba²⁺ and Cu²⁺ was added conc. HCl, followed by H₂S.

The total number of cations precipitated during this reaction is/are :

JEE Main 2021 (Online) 22th July Evening Shift

MCQ (Single Correct Answer)

-1

When silver nitrate solution is added to potassium iodide solution then the sol produced is :

AgI / I^$$-$$

AgI / Ag⁺

KI / NO$$_3^ - $$

AgNO₃ / NO$$_3^ - $$

JEE Main 2021 (Online) 20th July Evening Shift

MCQ (Single Correct Answer)

-1

Cu²⁺ salt reacts with potassium iodide to give

Cu₂I₂

Cu₂I₃

Cul

Cu(I₃)₂

JEE Main 2021 (Online) 20th July Evening Shift

MCQ (Single Correct Answer)

-1

In Carius method, halogen containing organic compound is heated with fuming nitric acid in the presence of :

HNO₃

AgNO₃

CuSO₄

BaSO₄

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