Class 12 Exam  >  Class 12 Questions  >  One or More than One Options Correct TypeDire... Start Learning for Free
One or More than One Options Correct Type
Direction (Q. Nos. 11-15) This section contains 5 multiple choice questions. Each question has four choices (a), (b), (c) and (d), out of which ONE or MORE THAN ONE are correct.
Q.
Which of the following statements are incorrect regarding lanthanides?
  • a)
    All ions having unpaired electrons are coloured
  • b)
    The first and second ionisation energies are comparable with calcium
  • c)
    Melting point range is 1000 to 1200 K but samarium has 1623 K
  • d)
    Ce4+ is a strong reducing agent
Correct answer is option 'A,D'. Can you explain this answer?
Verified Answer
One or More than One Options Correct TypeDirection (Q. Nos. 11-15) Thi...
Ce3+ (4f1) and Yb3+ (f13) are colourless because they do not absorb in the visible region. The E° value for Ce4+ /Ce3+ is + 1.74 V which suggest it is strong oxidising agent.
View all questions of this test
Explore Courses for Class 12 exam

Similar Class 12 Doubts

One or More than One Options Correct TypeDirection (Q. Nos. 11-15) This section contains 5 multiple choice questions. Each question has four choices (a), (b), (c) and (d), out of which ONE or MORE THAN ONE are correct.Q. Which of the following statements are incorrect regarding lanthanides?a)All ions having unpaired electrons are colouredb)The first and second ionisation energies are comparable with calciumc)Melting point range is 1000 to 1200 K but samarium has 1623 Kd)Ce4+ is a strong reducing agentCorrect answer is option 'A,D'. Can you explain this answer?
Question Description
One or More than One Options Correct TypeDirection (Q. Nos. 11-15) This section contains 5 multiple choice questions. Each question has four choices (a), (b), (c) and (d), out of which ONE or MORE THAN ONE are correct.Q. Which of the following statements are incorrect regarding lanthanides?a)All ions having unpaired electrons are colouredb)The first and second ionisation energies are comparable with calciumc)Melting point range is 1000 to 1200 K but samarium has 1623 Kd)Ce4+ is a strong reducing agentCorrect answer is option 'A,D'. Can you explain this answer? for Class 12 2024 is part of Class 12 preparation. The Question and answers have been prepared according to the Class 12 exam syllabus. Information about One or More than One Options Correct TypeDirection (Q. Nos. 11-15) This section contains 5 multiple choice questions. Each question has four choices (a), (b), (c) and (d), out of which ONE or MORE THAN ONE are correct.Q. Which of the following statements are incorrect regarding lanthanides?a)All ions having unpaired electrons are colouredb)The first and second ionisation energies are comparable with calciumc)Melting point range is 1000 to 1200 K but samarium has 1623 Kd)Ce4+ is a strong reducing agentCorrect answer is option 'A,D'. Can you explain this answer? covers all topics & solutions for Class 12 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for One or More than One Options Correct TypeDirection (Q. Nos. 11-15) This section contains 5 multiple choice questions. Each question has four choices (a), (b), (c) and (d), out of which ONE or MORE THAN ONE are correct.Q. Which of the following statements are incorrect regarding lanthanides?a)All ions having unpaired electrons are colouredb)The first and second ionisation energies are comparable with calciumc)Melting point range is 1000 to 1200 K but samarium has 1623 Kd)Ce4+ is a strong reducing agentCorrect answer is option 'A,D'. Can you explain this answer?.
Solutions for One or More than One Options Correct TypeDirection (Q. Nos. 11-15) This section contains 5 multiple choice questions. Each question has four choices (a), (b), (c) and (d), out of which ONE or MORE THAN ONE are correct.Q. Which of the following statements are incorrect regarding lanthanides?a)All ions having unpaired electrons are colouredb)The first and second ionisation energies are comparable with calciumc)Melting point range is 1000 to 1200 K but samarium has 1623 Kd)Ce4+ is a strong reducing agentCorrect answer is option 'A,D'. Can you explain this answer? in English & in Hindi are available as part of our courses for Class 12. Download more important topics, notes, lectures and mock test series for Class 12 Exam by signing up for free.
Here you can find the meaning of One or More than One Options Correct TypeDirection (Q. Nos. 11-15) This section contains 5 multiple choice questions. Each question has four choices (a), (b), (c) and (d), out of which ONE or MORE THAN ONE are correct.Q. Which of the following statements are incorrect regarding lanthanides?a)All ions having unpaired electrons are colouredb)The first and second ionisation energies are comparable with calciumc)Melting point range is 1000 to 1200 K but samarium has 1623 Kd)Ce4+ is a strong reducing agentCorrect answer is option 'A,D'. Can you explain this answer? defined & explained in the simplest way possible. Besides giving the explanation of One or More than One Options Correct TypeDirection (Q. Nos. 11-15) This section contains 5 multiple choice questions. Each question has four choices (a), (b), (c) and (d), out of which ONE or MORE THAN ONE are correct.Q. Which of the following statements are incorrect regarding lanthanides?a)All ions having unpaired electrons are colouredb)The first and second ionisation energies are comparable with calciumc)Melting point range is 1000 to 1200 K but samarium has 1623 Kd)Ce4+ is a strong reducing agentCorrect answer is option 'A,D'. Can you explain this answer?, a detailed solution for One or More than One Options Correct TypeDirection (Q. Nos. 11-15) This section contains 5 multiple choice questions. Each question has four choices (a), (b), (c) and (d), out of which ONE or MORE THAN ONE are correct.Q. Which of the following statements are incorrect regarding lanthanides?a)All ions having unpaired electrons are colouredb)The first and second ionisation energies are comparable with calciumc)Melting point range is 1000 to 1200 K but samarium has 1623 Kd)Ce4+ is a strong reducing agentCorrect answer is option 'A,D'. Can you explain this answer? has been provided alongside types of One or More than One Options Correct TypeDirection (Q. Nos. 11-15) This section contains 5 multiple choice questions. Each question has four choices (a), (b), (c) and (d), out of which ONE or MORE THAN ONE are correct.Q. Which of the following statements are incorrect regarding lanthanides?a)All ions having unpaired electrons are colouredb)The first and second ionisation energies are comparable with calciumc)Melting point range is 1000 to 1200 K but samarium has 1623 Kd)Ce4+ is a strong reducing agentCorrect answer is option 'A,D'. Can you explain this answer? theory, EduRev gives you an ample number of questions to practice One or More than One Options Correct TypeDirection (Q. Nos. 11-15) This section contains 5 multiple choice questions. Each question has four choices (a), (b), (c) and (d), out of which ONE or MORE THAN ONE are correct.Q. Which of the following statements are incorrect regarding lanthanides?a)All ions having unpaired electrons are colouredb)The first and second ionisation energies are comparable with calciumc)Melting point range is 1000 to 1200 K but samarium has 1623 Kd)Ce4+ is a strong reducing agentCorrect answer is option 'A,D'. Can you explain this answer? tests, examples and also practice Class 12 tests.
Explore Courses for Class 12 exam
Signup for Free!
Signup to see your scores go up within 7 days! Learn & Practice with 1000+ FREE Notes, Videos & Tests.
10M+ students study on EduRev