What is structure of Nacl and give the co-ordination number of Nacl?

1030

---

What is the order of C-H bond length in C2H6 and C2H4 and C2H2?

1063

---

Define limiting radius?

1169

---

Which is the most Abundant Alkaline earth element?

1089

---

Define co-ordination covalent bond?

1109

---

In double bond, how many sigma and Pi bonds are present in it?

1086

---

Which group of elements is called alkaline earth metals?

1051

---

Which element in 1A group does not form peroxides?

1111

---

What is the property of Alkaline earth metal Ions?

1103

---

What are the units of bond length?

1109

---

Define bond energy?

1109

---

Define polar covalent bond?

1235

---

Define bond angle?

1195

---

Which metal is more metallic in nature among 1A group elements?

1092

---

What are the compounds used for extraction of Gold and Silver?

1059

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