Chemistry questions
29404 published questions with worked solutions.
- Arrange the following molecules in the increasing order of bond angle. I. H_2O II. H_2S III. H_2Se IV. H_2Te
- Match the following and choose the correct option. Column I A. SF_4 B. IF_5 C. NO_2^+ D. NH_4^+ Column II 1. sp^3d^2 2. sp^3 3....
- In XeF_2 , XeF_4 and XeF_6 , the number of lone pairs of Xe , respectively are
- The molecular shapes of SF_4 , CF_4 and XeF_4 are
- In accordance to molecular theory,
- The bond dissociation energy of B - F in BF_3 is 646 kJ ,mol^ -1 , whereas that of C - F in CF_4 is 515 kJ ,mol^ -1 . The correct...
- In which of the following ionization processes, the bond order has increased and magnetic behaviour has changed?
- Consider the following compounds, I. 1,2-dihydroxybenzene II. 1,3-dihydroxybenzene III. 1,4-dihydroxybenzene IV. Hydroxybenzene...
- Ortho - nitrophenol is less soluble in water than p- and m-nitrophenols because
- What is the value of C-O-H bond angle in CH_3-OH ?
- What is the bond order of B_2 molecule?
- Which of the following molecule contain 50% p character of hybrid orbital in C atom?
- In which of the following compounds intramolecular hydrogen bonding is present?
- In gas phase H - O - O - H bond angle in H_2O_2 is
- What is standard N N bond enthalpy from following reaction, N_2(g) + 3H_2(g) 2NH_3(g) ; H^ = -83 kJ ( H^ ( H-H ) = 435 kJ ; H^ (...
- Which of the following is correct decreasing order of the repulsive interaction of electron pairs in a molecule?
- Which of following bonds has maximum bond length?
- What is the H - S - H bond angle in H_2S ?
- The number of and -bonds in 2-formylbenzoic acid are respectively
- The shape of BrF_5 molecule is