Home
Class 12
CHEMISTRY
How many of the transition elements are ...

How many of the transition elements are called Platinum metals.

Text Solution

Verified by Experts

Second and third triad of 4d and 5d series of group VIII or group, 8,9 and 10 are collectively called platinum metals, these are:
4d series: Ru Rh Pd
`5d` series: Os Ir Pt
Promotional Banner

Topper's Solved these Questions

  • D AND F BLOCK ELEMENTS

    CENGAGE CHEMISTRY|Exercise Exercises Fill In The Blanks|10 Videos

  • D AND F BLOCK ELEMENTS

    CENGAGE CHEMISTRY|Exercise Exercises True False|10 Videos

  • D AND F BLOCK ELEMENTS

    CENGAGE CHEMISTRY|Exercise Exercises Assertion Reasoning|20 Videos

  • COORDINATION COMPOUNDS

    CENGAGE CHEMISTRY|Exercise Archives Subjective|18 Videos

  • ELECTROCHEMISTRY

    CENGAGE CHEMISTRY|Exercise Archieves Subjective|35 Videos

Similar Questions

Explore conceptually related problems

How many of the transition elements are called coinage metals.

Why group -1 elements are called alkali metals ?

What are the characteristics of th transition elements and why are they called transition elements? Which of the d-block elements may not be regarded as the transition elements?

Explain the following : (i) Most of the transition elements show variable oxidation states. (ii) Many transition elements and their compounds are paramagnetic .

Explain giving reason: (a) Transition metals and many of their compounds show paramagnetic behaviour. (b) The enthalpies of atomisation of the transition metals are high. (c). The transition metals gnerally form coloured compounds.

The last electron of transition element is called

Which of the following statement(s) is/are correct? (A) Transition metals and many of their compounds show paramagnetic behaviour. (B) The enthapies of atomisation of the transition metals are high (B) The transition metals generally form coloured compounds (D) Transition metals and their many compounds act as good catalyst.

Explain the following : (i) Most of the transition elements show variable oxidation states. (ii) Most of the compounds of transition elements are coloured. (iii) Many transition elements and their compounds are paramagnetic .