Can someone Help me in this Problem ? along with an explanation

According to me, the answer should be (2), as all the other metal cations form complexes.

Silver forms \( [ Ag(NH_{3})_2]^{+1}\)

Copper forms \( [ Cu(NH_{3})_4]^{+2}\)

Zinc forms \( [ Zn(NH_{3})_4]^{+2}\) – Avineil Jain · 3 years, 1 month ago

Usually such reactions involves complexation. Ammonia is a strong field ligand, it easily forms complexes with most metal cations, except a few like aluminium. The result follows. – Paramjit Singh · 3 years, 1 month ago

when Al (OH)3 react with NH4OH it precipitates as the solubility of Al (OH)3 is less in NH4OH than in water – Dharma Teja · 3 years, 1 month ago

All metals can form complexes and Al can't so it's 2 – Ðürvã Kølî · 3 years, 1 month ago

I think the same, the answer is 2. Beacuse The reaction of alumunium with amonia cant form a complex, altough amonia is a good ligant. Because the reaction just form Al(OH)2, who have a low solubility in the more reagent. While the ions of the other metals, if they reacted with a little of ammonia, they'll precipitate to form Ag2O, Zn(OH)2, Cu(OH)2. But they are can soluble with more ammonia, which each form their complex compound, like avineil jain was told. Sorry i cant give my expalanation well, i have the bad english. – Ulsyah Almusyarofah · 3 years, 1 month ago

ANS:- 2 THIS IS THE ULTIMATE ANSWER AS I HAVE POSTED THIS. – Ariijit Dey · 3 years ago

Answer is 2 becoz 1 and 3 can form complex salts with aqueous ammonia and 4 is hydroxide of an amphoteric metal. So all that is left is 2 – Deep Mallik · 3 years, 1 month ago

I think its 2 Al(OH)³ – Âbhïshëk Çôöl · 3 years, 1 month ago

the answer is (2),AL(OH)3 – Emmanuel Astorga · 3 years, 1 month ago

a) – Emanuel Farid · 3 years ago

a, Agcl is insoluble to ammonia, AgCl is a metallic salt. – Joram Otero · 3 years ago

I thing (2) answer because other makes them complex. – Atish Patel · 3 years ago

Agcl – Bazmi Farooquee · 3 years ago

I think that ans is 2 bcoz all other are made from complexes – Sufyan Dhansay · 3 years ago

4 – Rohit Ketkar · 3 years ago

2 – Sobia Khan · 3 years ago

it is Al(OH)3 becoz it will not make complex compound with ammonia. other do as Ag(NH3)2Cl, Cu(NH3)4(OH)2,Zn(NH3)4(OH)2 – Mit Naria · 3 years ago

Al(oh)2 – Prince Akhil · 3 years ago

according to me ans should be 1 all three have oh- ions – Riddhesh Deshmukh · 3 years ago

Because all others are already in aqueous form as hydroxide is already there – Preety Aggarwal · 3 years, 1 month ago

The answer is AgCl – Preety Aggarwal · 3 years, 1 month ago

Option (2) – Shreyas Patel · 3 years, 1 month ago

The answer is 2 because all others can form complex – Aliraza Lakhani · 3 years, 1 month ago

The answer is 2, because it can't form complexes with Aluminium. – Kevin Liyanto · 3 years, 1 month ago

Its Al(OH)3 because it will form precipitation. – Vivi Hinata · 3 years, 1 month ago

2 is the answer – Rahul Malik · 3 years, 1 month ago

Aloh3 – Darshan Mehta · 3 years, 1 month ago

Al(OH)3 doesn't form a complex in ammonia, so it should be 2. The rest react with ammonia. – Yuxuan Seah · 3 years, 1 month ago

Al(OH)3 – Sruti Swaminathan · 3 years, 1 month ago

2) Al(OH)3 is insoluble in aqueous ammonia – Shashwat Sulekh · 3 years, 1 month ago

I think it is 1st option – Nikunj Pandharikar · 3 years, 1 month ago

Al(OH)3 is insoluble, because aqueous ammonia creates the conditions for it to precipitate. At lower pH it will be dissolved as Al3+.6H2O, at higher pH it will be dissolved as Al(OH)6(3-). – Fares Salem · 3 years, 1 month ago

Yaa its answer 2 – Parag Soni · 3 years, 1 month ago

Al(OH)3 – Kshitij Bafna · 3 years, 1 month ago

Answer is no. 2 – Loslos Borja · 3 years, 1 month ago

Ans is 2 – Ravi Bagdia · 3 years, 1 month ago

3 – Niraj Ingole · 3 years, 1 month ago

The answer is 2 because all others can form complexes – Subhiksha Mukuntharaj · 3 years, 1 month ago

Answer is 2 – Aashish Gangwani · 3 years, 1 month ago

twoooo.cause Al cant form complex ones. – Krishna Deb · 3 years, 1 month ago

answer is 2 – Kads Phạm · 3 years, 1 month ago

except aluminium all others are d- block elements. they can form complexes. p - block element Al cannot form – Brahmam Meka · 3 years, 1 month ago

The answer is 2 – Dang Anh Tu · 3 years, 1 month ago

1 – Rahul Singh · 3 years, 1 month ago

As told by Avineil Jain I was also thinking the that same concept – Anubhav Sachan · 3 years, 1 month ago

AgCl2 – Gaurav Ghosh · 3 years, 1 month ago

its 4th option – Ahsan Jamali · 3 years, 1 month ago