Metallic Bond

Q.

Magnitude of H-bond is maximum in

Q. Which of the following is observed in metallic bonds?

1. Mobile valence electrons
2. Localised electrons
3. Highly directed bond
4. None of these

Q. Which of the following is observed in metallic bonds?

1. Mobile valence electrons
2. Localised electrons
3. Highly directed bond
4. None of these

Q. Which of following physical properties can be explained by electron sea model?

1. Electrical conduction
2. Thermal conduction
3. Melleability
4. All of these

Q. The type of bond between atoms of calcium in a crystal of calcium is:

1. Metallic bond
2. Pure covalent bond
3. Polar covalent bond
4. Ionic bond

Q. Which of the following statements is correct regarding alkaline earth metals?

1. Alkaline earth metals are weaker reducing agents than alkali metals.
2. Alkaline earth metal salts are paramagnetic in nature.
3. Solubility of sulphates of alkaline earth metals increases from top to bottom in the group.
4. Alkaline earth metal salts are more soluble than corresponding alkali metal salts.

Q. 66.Triple bondenergy order in decreasing order will be of co, N2 , cn , cc

Q. The type of bond between atoms of calcium in a crystal of calcium is:

1. Metallic bond
2. Pure covalent bond
3. Polar covalent bond
4. Ionic bond

Q. Which of the following charecteristics of metals can not be explained by Electron sea model of metals?

1. Hardness
2. Malleability
3. Electrical conductivity
4. Sonorousness

Q.

The weakest interaction among the following is _____.

1. Metallic

2. Ionic

3. Van der Waal

4. Covalent

Q. The correct order of boiling point of $K,Ca,Sc$ is:

1. $K>Ca>Sc$
2. $Ca>K>Sc$
3. $Sc>Ca>K$
4. $K>Sc>Ca$