19,000+ solved questions for JEE Advanced, JEE Mains, NEET & IChO — with answers and expert explanations.
Which one of the following is the correct set with respect to molecule, hybridization and shape ?
Which of the following statements is incorrect for PCl5?
Select pair of compounds in which both have different hybridization but have same molecular geometry:
The hybridization of atomic orbitals of the central atom “Xe” in XeO4, XeO2F2, and XeOF4 respectively.
The structure and hybridization of Si(CH3)4 is :
The increasing order of energies of various molecular orbitals are I. ls < ls < 2s < ( 2 ) ( ) II. ls < ls < 2s < ( 2 ) ( ) z x y x y z x y z x y z s P P P P P P s P P P P P P
The condition to form a molecular orbital from atomic orbital is
The number of molecular orbitals formed is equal to the number of combining atomic orbitals. When two atomic orbitals combine, two molecular orbitals are formed one is known as bonding molecular orbital while the othe…
The molecular orbitals like atomic orbitals are filled in accordance with the
Which of the following have identical bond order? (I) CN– (II) O2 (III) NO+ (IV) N2
Which one of the following species is diamagnetic in nature ? (a) H (b) H (c) H (d) He
Take NA as the number of Anti-bonding molecular orbitals and NB as the number of Bonding molecular orbitals. The molecule is stable when NA ____________ NB. a) is greater than b) is equal to c) is less than d) is grea…
Which of the following is paramagnetic? (a) O
The ground state electronic configuration of valence shell electrons in nitrogen molecule (N2) is written * , , 2 , 2p 2p x y z s s p .Hence,the bond order in nitrogen molecule is :
The ion that is isoelectronic with CO is:
The number of anti-bonding electron pairs in O molecular ion on the basis of molecular orbital theory is (atomic no. of O is 8):
Which one of the following is not paramagnetic?
Using MO theory, predict which of the following species has the shortest bond length? (a) O (b) O (c) O (d) O Ans. (d) Sol. As we know, Bond length 1/bond order. In option A, Ohas bond order 2.5 In option B, Ohas bo…
Accordingly MO theory (a) O is paramagnetic and bond order is greater than O2. (b) Ois paramagnetic and bond order is less than O2. (c) Ois diamagnetic and bond order is less than O2. (d) Ois diamagnetic and bond orde…
Which of the following molecules have same bond order? H2, He2, C2 and O2
Metallic bond is.
The boiling point of a substance increases with increase in
Which of the following molecules do show the hydrogen bonding? I. CCl3CH(OH)2 II. o-hydroxy benzoic acid
Which of the following molecule can form a hydrogen bond?
What type of intermolecular forces are due to the attraction between temporary dipoles and their induced temporary dipoles?