1. Write the chemical formula:
Tris(ethane-1,2-diamine)cobalt(III) sulphate is written as [Co(en)\(_3\)]\(_2\)(SO\(_4\))\(_3\), where 'en' represents ethane-1,2-diamine (NH\(_2\)CH\(_2\)CH\(_2\)NH\(_2\)).
2. Dissociation of the complex:
[Co(en)\(_3\)]\(_2\)(SO\(_4\))\(_3\) dissociates into ions as follows:
[Co(en)\(_3\)]\(_2\)(SO\(_4\))\(_3\) \( \rightarrow \) 2[Co(en)\(_3\)]\(^{3+}\) + 3SO\(_4^{2-}\)
3. Count the number of ions:
2 complex ions [Co(en)\(_3\)]\(^{3+}\)
3 sulphate ions SO\(_4^{2-}\)
Total ions = 2 + 3 = 5 ions
Therefore, the number of ions present in tris(ethane-1,2-diamine)cobalt(III) sulphate is 5.
Final Answer: 5.
Which of the following are correct?
i. Basic structural unit of silicates is –\( \text{-RSiO-} \)
ii. Silicones are biocompatible
iii. Producer gas contains CO and \( \text{N}_2 \)
Observe the following reaction sequence
Correct statement regarding Y is

What is D in the given sequence of reaction?
