Answer the questions as instructed

Question

Q 2 . The deepening of color on addition of KSCN supports

(A)A only

(B)A and D only

(C)A and B only 

(D) C only

Answer 1

The correct answer is d (B and D only)

• Thiocyanate (also known as rhodanide) is the anion [SCN]⁻. It is the conjugate base of thiocyanic acid. 
• Common derivatives include the colorless salts potassium thiocyanate and sodium thiocyanate. 
• Organic compounds containing the functional group SCN are also called thiocyanates.
• FeSCN²⁺ With the forward reaction rate increases, more products are produced, and the concentration of  FeSCN²⁺  will increase [FeSCN]2+↑ 

The answer of Q 2 is below:

You have given the option c as A and B but

The correct option is c (B and D only)

The colorless KSCN solution and nearly colorless Fe(NO₃ )_{3 solution} should form a brownish-red product.