Quiz Physics 1 Part 1
[PPSC 2017] Work done to stop the motion of car is equivalent to:Thermal EnergyK.E.P.E.None of theseAnswer K.E [PPSC 2017] Work done in circular motion after complete cycle? Radius is 5m with…
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September 5, 2024
S and p
1.The correct increasing order of splitting power of ligands according to spectrochemical series is(a) Cl– < OH– < CN–(b) Cl– < CN– < OH–(c) OH– < Cl– < CN–(d) none of…
September 5, 2024
States of matter
When 1 litre of water is cooled from 4°C to 0°C, its volume _.?(a) First decreases and then increases(b) Remains the same(c) Increases(d) DecreasesAnswer: (c)ExplanationWhen 1 litre of water is cooled…
September 5, 2024
chemical Thermodynamics
Heat does not spontaneously flow from a colder body to a hotter one. Which of the following thermodynamics law states this?(a) Zeroth law of thermodynamics(b) First law of thermodynamics(c) Second law…
September 4, 2024
Chemical kinetics and chemical equlibrium
1. Highest pH will be recorded for which of the following solutions if they are equimolar(a) AlCl3(b) LiCl(c) BeCl2(d) BaCl2Answer: (d)ExplanationAlCl3 is made up of AlOH3 and HCl.LiCl is made up of…
September 4, 2024
Chemical bonding
1.Find the pair with sp2 hybridization of the central molecule (a) NH3 and NO2– (b) BF3 and NH2– (c) BF3 and NO2– (d) none of these Explanation To find the hybridization of central atoms: For…
September 4, 2024
Chromatography
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…
September 4, 2024
Atomic Structure
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…
September 4, 2024
Atomic Structure
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…
September 4, 2024
Aromatic compounds
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…
September 4, 2024