JEE Main 2022 (Online) 24th June Morning Shift | Salt Analysis Question 15 | Chemistry

JEE Main 2022 (Online) 24th June Morning Shift

MCQ (Single Correct Answer)

-1

During the qualitative analysis of salt with cation y²⁺, addition of a reagent (X) to alkaline solution of the salt gives a bright red precipitate. The reagent (X) and the cation (y²⁺) present respectively are :

Dimethylglyoxime and Ni²⁺

Dimethylglyoxime and Co²⁺

Nessler's reagent and Hg²⁺

Nessler's reagent and Ni²⁺

JEE Main 2021 (Online) 27th July Evening Shift

MCQ (Single Correct Answer)

-1

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) 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) 25th February Evening Shift

MCQ (Single Correct Answer)

-1

Given below are two statements :

Statement I : The identification of Ni²⁺ is carried out by dimethyl glyoxime in the presence of NH₄OH.

Statement II : The dimethyl glyoxime is a bidentate neutral ligand.

In the light of the above statements, choose the correct answer from the options given below :

Statement I is false but Statement II is true.

Statement I is true but Statement II is false.

Both Statement I and Statement II are false.

Both Statement I and Statement II are true.

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