Math Chapter Wise Modern Algebra English MCQ RPSC PGT 2022 Q.Incorrect statement is - ASet (–2z) is an ideal of ring (Z, +, •) BSet 2z and 3z are ideals of ring (Z, +, •) but (2z ∪ 3z) is not ideal CThere is no proper ideal of the ring (Z5, +5, ×5) DSets 4Z and 5Z are ideals of the ring (Z, +, •) but (4z ∩ 5z) Show answer Correct answer: There is no proper ideal of the ring (Z5, +5, ×5)