An organic compound containing C, H and O gave the following analysis
An organic compound containing C, H and O gave the following analysis: C=40%; H=6.66%; Its empirical formula would be Options…
7 years ago
Memory
Identify the correct order of the size of the following elements:
Identify the correct order of the size of the following elements: Ca, K, Ar,Cl,S Options (a) Ca²⁺< K⁺< Ar <…
7 years ago
A bromoalkane contains 35% carbon and 6.57% hydrogen by mass. Calculate the empirical
A bromoalkane contains 35% carbon and 6.57% hydrogen by mass. Calculate the empirical formula of this bromoalkane. Options (a) CH₂Br…
7 years ago
The correct order of ionisation energy for comparing carbon, nitrogen and oxygen
The correct order of ionisation energy for comparing carbon, nitrogen and oxygen is Options (a) CO (b) C>NN>O (d) C>N
7 years ago
The correct order of increasing bond length of C–H, C–O, C–C and C=C is
The correct order of increasing bond length of C–H, C–O, C–C and C=C is Options (a) C–C < C=C <…
7 years ago
In which of the following pairs, the two species are iso-structure?
In which of the following pairs, the two species are iso-structure? Options (a) SO₃²⁻ and NO₃⁻ (b) BF₃ and NF₃…
7 years ago
Chemical properties of lithium and magnesium are similar because
Chemical properties of lithium and magnesium are similar because Options (a) these belongs to same group (b) shows disgonal relationship…
7 years ago
In which of the following pairs of molecules/ions, the central atoms have
In which of the following pairs of molecules/ions, the central atoms have sp²-hybridisation? Options (a) NO₂⁻ and NH₃ (b) BF₃…
7 years ago
which of the following molecules has trigonal planar geometry?
Which of the following molecules has trigonal planar geometry? Options (a) BF₃ (b) NH₃ (c) PH₃ (d) IF₃ Correct Answer:…
7 years ago
Which one of the following species does not exist under normal conditions?
Which one of the following species does not exist under normal conditions? Options (a) Be₂⁺ (b) Be₂ (c) B₂ (d)…
7 years ago