1. Chromatography is a physical method that is used to separate and analyse __________a) Simple mixturesb) Complex mixturesc) Viscous mixturesd)none of these Answer: b Explanation Chromatography is a physical method that…
The probability of finding the electron in the nucleus is?(a) 100% due to forces of attraction(b) finite for all orbitals(c) Zero for all orbitals(d) Zero for some orbitals and finite for…
1. The probability of finding the electron in the nucleus is? 100% due to forces of attraction finite for all orbitals Zero for all orbitals Zero for some orbitals and finite…
1.Arenes do not show?(a) Delocalization of pi-Electrons(b) Greater Stability(c) Resonance(d) Electrophilic AdditionsAnswer: (d)Video Explanation Find the most stable carbonium ion here?(a) CH3CH2+(b) C6H5CH2+(c) C6H5CH2CH2+(d) (C6H5)2+Answer: (a)Video Explanation 3- Which of the…
Chromatography is a physical method that is used to separate and analyse __a) Simple mixturesb) Complex mixturesc) Viscous mixturesd)none of theseAnswer: bExplanationChromatography is a physical method that is used to separate…
Gluconeogenesis involves the______. (PPSC 2021)?(a) synthesis of glycogen from glucose(b) breakdown of glycogen to form glucose(c) breakdown of glucose to produce pyruvate(d) None of the theseAnswer: dExplanationGluconeogenesis is the pathway by…
Which of the following molecules does not have a dipole moment? (PPSC 2015)?(a) CCl4(b) CH2Cl2(c) CHCl3(d) CH3ClAnswer: aVideo Explanation Which of the following compounds has an ionic bond?(a) H2O(b) NH4Cl(c) CH3Li(d)…
The coldest region of the atmosphere(a) Troposphere(b) Thermosphere(c) Stratosphere(d) MesosphereAnswer: dVideo Explanation 22.Regular use of which of the following fertilizers increases the acidity of soil?(a) Potassium nitrate(b) Superphosphate of lime(c) Ammonium…
Which of the following atoms or ions has the electronic configuration 1s22s22p63s23p6 ?(a) Ne(b) Al3+(c) Cl-(d) Mg2+Answer: cExplanationThe Chlorine (17) electron configuration will be 1s22s22p63s23p5. The chloride ion (Cl-), on the…
Chemistry Lecture Series20 Sections | 20 HorsLecturer Chemistry Complete Course and Assessment Classes | Batch -07Instructors: Miss Samia & Miss Nosheen Click the Topic and Watch Full Length Lecture Section 01…