Chemistry Quiz Chemistry #ChemistryMcqs #PPSC #FPSC How many acidic hydrogen atoms are there in propyne?a) 1b) 3c) 4d) zero Which of the following has a +M effect?a) NO2b) NH2c) CHOd) CN…

16/32The operator does not depends upon time explicitly.[H, A] = 0Both (A) and (B)None of these Eigen values of hermition operator are?Question grade : 1 17/32RealComplexCan be bothNone of these For…

Square of the magnitude of (Psi) wave function is known as:?Question grade : 1 1/32ProbabilityCurrent DensityProbability densityNone of these In Hilbert space, those vectors which are normalized to unity are known…

when a current carrying conductor is placed magnetic field the force on conductor will be?zero when length vector and field are parallelhalf of maximum when length vector and field are at…

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 other hand, has an additional electron…

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)…

Which of the following element act as an inert electrode a) Cu b) Agc) Ptd) None Answer: C Explanation usually platinum works as inert electrode. Inert electrode means the electrode which doesn't participate…

The maximum number of electrons which can be present in a subshell can be represented by(a) 2l + 1(b) 2n2(c) 4l + 2(d) 4l – 2Answer: (c)ExplanationMaximum number of electrons present…