JEE Advanced questions
3844 published questions with worked solutions.
- Fe_3O_4 is calledNot in JEE Main or NEET syllabus
- The outer electronic configuration of transitional elements is
- In 3d transition series, if nuclear charge increases, the screening effect
- The lanthanoid contraction is due to
- Elements after atomic number 92 are called
- Out of SiCl_4, TiCl_4, PO_4^ 3- , SO_4^ 2- , CrO_4^ 2- , CCl_4 isostructural are
- The trivalent ion having largest size is
- Which of the following factors may be regarded as the main cause of lanthanide contraction?
- Which of the following is not an actinoid?
- In the following reaction nCH_2 = CH_2 [-CH_2-CH_2-]_n, Catalyst isNot in JEE Main or NEET syllabus
- CuSO_4 can be estimated volumetrically
- Ti^ 2+ is purple while Ti^ 4+ is colourless because
- Alkaline KMnO_4 (Baeyer's reagent) can be used to test unsaturation in styrene (phenyl–CH=CH₂). In this case
- A blue solution of copper sulphate becomes darker when treated with excess of ammonia. This is because
- Arrange VO_2^+, Cr_2O_7^ 2- and MnO_4^- in increasing oxidizing power.
- [Fe(H_2O)_5NO]^ 2+ is the brown-ring complex formed in the test for NO_3^-. In this complex, NO transfers its electron to Fe^ 2+...
- MnO_4^ 2- (1 mol) in neutral aqueous medium disproportionates to
- FeSO_4 solution gives a brown colour ring when testing for nitrates or nitrites. This is
- Which of the following statements concerning lanthanide elements is false?
- Out of [Fe(CN)_6]^ 4- , [Ni(CN)_4]^ 2- and [Ni(CO)_4]