1. The C – C bond length in C60 is [ ] A) 1.54Å B) 1.42Å C) 1.4Å D) 1.20Å2. Which of the following is amorphous form of carbon [ ]A) Diamond B) Graphite C) C60 D) Coal3. The number of sigma and pi bonds in C2H2 molecule are [ ]A) 3, 2 B) 2, 3 C) 5, 1 D) 7, 04. The pair of elements which exhibits the property of catenation is [ ]A) Sodium and silicon B) Chlorine and carbonC) Carbon and sodium D) Silicon and carbon5. The hybridisation of each carbon atom in Graphite is [ ]A) sp B) sp2 C) sp2 D) sp3d6. The concept of hybridisation was introduced by [ ]A) Linus Pauling B) R.F. Curl C) H.W.Kroto D) R.E.Smalley

1. The C – C bond length in C60 is [ ] A) 1.54Å B) 1.42Å C) 1.4�

1.	1. The C – C bond length in C60 is [ ] A) 1.54Å B) 1.42Å C) 1.4Å D) 1.20Å2. Which of the following is amorphous form of carbon [ ]A) Diamond B) Graphite C) C60 D) Coal3. The number of sigma and pi bonds in C2H2 molecule are [ ]A) 3, 2 B) 2, 3 C) 5, 1 D) 7, 04. The pair of elements which exhibits the property of catenation is [ ]A) Sodium and silicon B) Chlorine and carbonC) Carbon and sodium D) Silicon and carbon5. The hybridisation of each carbon atom in Graphite is [ ]A) sp B) sp2 C) sp2 D) sp3d6. The concept of hybridisation was introduced by [ ]A) Linus Pauling B) R.F. Curl C) H.W.Kroto D) R.E.Smalley
Answer» 1. 1.422. COAL3. 3,24. SILICON and carbon5. sp26. LINUS PAULING