236. The decreasing order of catenation of group 16 element is

1. 1. S>Se>O>Te

   
   
   

   2. O>S>Se>Te

   
   
   

   3. O>S>Te>Se

   
   
   

   4. S>O>Se>Te

   
   
   

---

1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: A

   NA

---

237. An important method for the fixation of nitrogen is

1. 1. Haber's process

   
   
   

   2. Solvay's process

   
   
   

   3. Deacon's process

   
   
   

   4. Frusch's process

   
   
   

---

1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: A

   NA

---

---

238. The mineral element which is essential in nitrogen fixation is

1. 1. Zn

   
   
   

   2. Cu

   
   
   

   3. Mo

   
   
   

   4. B

   
   
   

---

1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: C

   NA

---

239. Which of the following is a pseudohalgen ?

1. 1. ICI

   
   
   

   2. ICI^-₂

   
   
   

   3. (CN)^-

   
   
   

   4. I^-₅

   
   
   

---

1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: C

   NA

---

---

240. Which of the following is interhalogen ?

1. 1. IF₅

   
   
   

   2. I⁻₃

   
   
   

   3. CN^-

   
   
   

   4. (CN)₂

   
   
   

---

1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: A

   NA

---