OnlineCBT Logo OnlineCBT

Chemistry · PYQ NEET UG 2016(2)

हिन्दी

Which one of the following statements related to lanthanoids is INCORRECT? Which of the above statements is/are NOT correct?

  1. Ce (+4) solutions are widely used as oxidizing agent in volumetric analysis.
  2. Europium shows +2 oxidation state.
  3. The basicity decreases as the ionic radius decreases from Pr to Lu.
  4. All the lanthanoids are much more reactive than aluminium.

Correct answer · Option 4

All the lanthanoids are much more reactive than aluminium.

Explanation

Not all lanthanoids are much more reactive than aluminum; some have standard electrode potentials close to or comparable with reactive metals, but reactivity varies.
पता संपर्क करें

+91 7877547686

ई-मेल

onlinecbtportal@gmail.com

हेल्पलाइन नंबर

+91 7877547686


डाउनलोड करने के लिए क्लिक करें
Get it on Google Play

ऐप डाउनलोड करने
के लिए Google Play पर
उपलब्ध है

WhatsApp Chat