Which of the following is not correct about transition metals?

Their melting and boiling points are high

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Their compounds are generally coloured

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They can form ionic or covalent compounds

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They do not exhibit variable valency

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Solution

The correct option is D They do not exhibit variable valency
Transition elements exhibit variable valency. The high melting points of these metals are attributed to the involvement of greater number of electrons from (n-1)d in addition to the ns electrons in the inter atomic metallic bonding.

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Similar questions

Q. Consider the following properties of the noble gases:

I

: they readily from compounds which are colourless.

I I

: they generally do not form ionic compounds.

I I I

: they have variable oxidation states in their compounds.

I V

: they generally do not form covalent compounds.

Select the the correct properties.

Fill in the blanks with correct words from the brackets:
(i) Generally ionic compounds exist in __________ (solid/liquid/gas) state.
(ii) Melting and boiling points of covalent compounds are generally ________ (low/high).

Q. Melting and boiling points of covalent compounds are generally high.

Explain the following:
(a) Covalent compounds are generally gases or liquids or soft solids.
(b) Covalent compounds have low melting point and boiling point.
(c) Non-polar covalent compounds are insoluble in water.
(d) Polar covalent compounds are good conductors of electricity.

Q. 34. Which of the following statements given is/are correct?
i) Ionic compounds have higher melting and boiling points compared to covalent compounds.
ii) The atoms of covalent materials are bound tightly to each other compared to ionic compounds.
Options:

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Which of the following is not correct about transition metals?

The correct option is D They do not exhibit variable valencyTransition elements exhibit variable valency. The high melting points of these metals are attributed to the involvement of greater number of electrons from (n-1)d in addition to the ns electrons in the inter atomic metallic bonding.

The correct option is D They do not exhibit variable valency
Transition elements exhibit variable valency. The high melting points of these metals are attributed to the involvement of greater number of electrons from (n-1)d in addition to the ns electrons in the inter atomic metallic bonding.