Latest questions in this category.
Transition metals are not used as inert electrodes - Pt is used but it's not inert.
Ref: NCERT Class 12 Chemistry > Chapter 4: d and f Block Elements > Topic: Applications of d and f Block Elements
2KMnO 4 → K 2 MnO 4 + MnO 2 + O 2 (thermal decomposition at ~513K).
Ref: NCERT Class 12 Chemistry > Chapter 4: d and f Block Elements > Topic: Applications of d and f Block Elements
Interstitial compounds have high melting points, not low melting points.
Ref: NCERT Class 12 Chemistry > Chapter 4: d and f Block Elements > Topic: Applications of d and f Block Elements
Lanthanoids are used in alloys, catalysts, and phosphors, but not as primary structural materials.
Ref: NCERT Class 12 Chemistry > Chapter 4: d and f Block Elements > Topic: Applications of d and f Block Elements
Pt-Rh gauze is used as a catalyst in the Ostwald process for NH 3 oxidation.
Ref: NCERT Class 12 Chemistry > Chapter 4: d and f Block Elements > Topic: Applications of d and f Block Elements
Finely divided iron (Fe) catalyzes the reaction: N 2 + 3H 2 → 2NH 3 .
Ref: NCERT Class 12 Chemistry > Chapter 4: d and f Block Elements > Topic: Applications of d and f Block Elements
Transition metals form interstitial compounds, not intermetallic compounds (alloys are different).
Ref: NCERT Class 12 Chemistry > Chapter 4: d and f Block Elements > Topic: Applications of d and f Block Elements
Strong metallic bonding due to involvement of d-electrons in bonding.
Ref: NCERT Class 12 Chemistry > Chapter 4: d and f Block Elements > Topic: Applications of d and f Block Elements
Transition metals and their compounds are used as catalysts, pigments, and in alloy formation. While platinum is used as an inert electrode in many electrochemical setups, the option 'inert electrodes' may be considered not primary/general for most transition metals.
Ref: NCERT Class 12 Chemistry > Chapter 4: d and f Block Elements > Topic: Applications of d and f Block Elements
Chromium (Cr) has the highest melting point in the 3d series due to half-filled 3d 5 4s 1 configuration providing extra stability.
Ref: NCERT Class 12 Chemistry > Chapter 4: d and f Block Elements > Topic: Applications of d and f Block Elements
Positive E° indicates Cu cannot displace H 2 from acids, as it is less reactive than hydrogen.
Ref: NCERT Class 12 Chemistry > Chapter 4: d and f Block Elements > Topic: Applications of d and f Block Elements
PdCl 2 (with CuCl 2 ) is used as catalyst in the Wacker process.
Ref: NCERT Class 12 Chemistry > Chapter 4: d and f Block Elements > Topic: Applications of d and f Block Elements
