311. Anhydride of HCIO₄ is

1. 1. CI₂O

   
   
   

   2. CIO₂

   
   
   

   3. CI₂O₆

   
   
   

   4. CI₂O₇

   
   
   

---

1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: D

   NA

---

312. The last orbit of argon would have element

1. 1. 2

   
   
   

   2. 6

   
   
   

   3. 8

   
   
   

   4. 18

   
   
   

---

1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: C

   NA

---

---

313. Which of the following noble gases has the largest van

1. 1. Xe

   
   
   

   2. Kr

   
   
   

   3. Ne

   
   
   

   4. Ar

   
   
   

---

1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: A

   NA

---

314. Which of the following has the highest boiling point ?

1. 1. Ne

   
   
   

   2. He

   
   
   

   3. Kr

   
   
   

   4. Ar

   
   
   

---

1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: C

   NA

---

---

315. On adding little phosphorus to silicon we get

1. 1. Insulator

   
   
   

   2. Metallic

   
   
   

   3. n-type semiconductor

   
   
   

   4. p-type semiconductor

   
   
   

---

1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: B

   NA

---