JEE Mains · Chemistry · STD 11 - 4. Chemical bonding and molecular structure
Which one of the following does not have a pyramidal shape?
- A \((CH_3)_3N\)
- B \((SiH_3)_3 N\)
- C \(P(CH_3)_3\)
- D \(P(SiH_3)_3\)
Answer & Solution
Correct Answer
(B) \((SiH_3)_3 N\)
Step-by-step Solution
Detailed explanation
In case of \(N(SiH_3)_3\, N\) atom is \(sp^2\) hybridised, the lone pair is present in \(2p\) orbital and it is transferred to empty \(d\) orbital of \(Si\) forming \(d\pi -p\pi \) bond . Hence nitrogen with \(sp^2\) hybridization has trigonal planar shape.
See the Complete Solution
Get step-by-step explanations for this and 2.5 Lakh+ more JEE, NEET & CET questions.
- Unlock all solutions
- Practice the full chapter
- Track accuracy across PYQs
4.8 rated on Google Play · 14,000+ reviews
More questions from Chemistry
- The major product formed in the following reaction is : \(CH _{3} CH = CHCH \left( CH _{3}\right)_{2} \stackrel{ HBr }{\longrightarrow}\)JEE Mains 2020 Medium
- Which oxoacid of phosphorous has the highest number of oxygen atoms present in its chemical formula?JEE Mains 2022 Medium
- The calculated spin-only magnetic moments of \(\mathrm{K}_3\left[\mathrm{Fe}(\mathrm{OH})_6\right]\) and \(\mathrm{K}_4\left[\mathrm{Fe}(\mathrm{OH})_6\right]\) respectively are _______.JEE Mains 2025 Medium
- A central atom in a molecule has two lone pairs of electrons and forms three single bonds. The shape of this molecule isJEE Mains 2021 Medium
- \(B\) has a smaller first ionization enthalpy than \(Be\). Consider the following statements : \((I)\) It is easier to remove \(2 \mathrm{p}\) electron than \(2 \mathrm{s}\) electron \((II)\) \(2 \mathrm{p}\) electron of \(\mathrm{B}\) is more shielded from the nucleus by the inner core of electrons than the \(2 s\) electrons of \(Be.\) \((III)\; 2 s\) electron has more penetration power than \(2 \mathrm{p}\) electron. \((IV)\) atomic radius of \(\mathrm{B}\) is more than \(\mathrm{Be}\) (Atomic number \(\mathrm{B}=5, \mathrm{Be}=4\) ) The correct statements areJEE Mains 2020 Hard
- The standard electrode potentials \(\left( {E_{{M^ + }/M}^\circ} \right)\) of four metals \(A, B, C\) and \(D\) are \(-1.2\, V, 0.6\, V, 0.85\, V\) and \(- 0.76\, V\), respectively. The sequence of deposition of metals on applying potential isJEE Mains 2014 Hard
More PYQs from JEE Mains
- The surface of sodium metal is irradiated with radiation of wavelength \(x\) nm. The kinetic energy of ejected electrons is \(2.8 \times 10^{-20}\) J. The work function of sodium is \(2.3\) eV. The value of \(x\) is _____ \(\times 10^2\) nm. (Nearest integer)
(Given: \(h = 6.6 \times 10^{-34}\) J s; \(1\) eV \(= 1.6 \times 10^{-19}\) J; \(c = 3.0 \times 10^8\) m s\(^{-1}\))JEE Mains 2026 Medium - For the reaction, \(3A+2B \to C + D\), the differential rate law can be written asJEE Mains 2014 Hard
- A proton of mass ' \(m_{\mathrm{p}}\) ' has same energy as that of a photon of wavelength ' \(\lambda\) '. If the proton is moving at non-relativistic speed, then ratio of its de Broglie wavelength to the wavelength of photon is _______.JEE Mains 2025 Medium
- Some couples participated in a mixed doubles badminton tournament. If the number of matches played, so that no couple played in a match, is \(840\), then the total numbers of persons, who participated in the tournament, is \(........\).JEE Mains 2023 Medium
- An electron of mass \(\mathrm{m}\) and magnitude of charge \(|e|\) initially at rest gets accelerated by a constant electric field \(\mathrm{E}\). The rate of change of de-Broglie wavelength of this electron at time \(t\) ignoring relativistic effects isJEE Mains 2020 Hard
- Three straight parallel current carrying conductors are shown in the figure. The force experienced by the middle conductor of length \(25\,cm\) is
JEE Mains 2014 Hard