MD MUSTAFIZUR RAHAMAN Polity Economy . Gk Current Affairs - Prfl link https:/unacademy.com/user/LeoMESSIIO
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1ITH NOVEMBER DAILY DOSE Wbcs Preliminary Exam 2019
Q1 Alpha particle is the nucleus of an atom of -(a) Lithium -(b) Hydrogen (c) Helium (d) Oxygen
ANS C Alpha particles consist of two protons and two neutrons bound together into a particle identical to a helium-4 nucleus
02 -Which one of the following does not -contain Silver? -(a) Ruby Silver -(b) Lunar Caustic -(c) German Silver -(d) Horn Silver
ANS C -The usual formulation is 60% copper, 20% nickel and 20% zinc. Nickel silver is named due to its silvery appearance, but it contains no elemental silver unless plated
Q3 -In a period from Li to F, ionizatioin potential -(a) decreases -(b) remains same -(c) cannot be predicted (d) increases
ANS D The ionization energy or ionization potential is the energy necessary to remove an electron from the neutral atom. It is a minimum for the alkali metals which have a single electron outside a closed shell.
Q4 -Which one of the following does not form oxyacid'? -(a) Nitrogen (b) Fluorine .(c) Sulphur .(d) Chlorine
ANS B flourine is very electronegative and it cannot exist in positive oxidation states in its compounds .in oxyacids of halogens ,oxygen carries a negative charge while the halogen carries a positive charge.the electronegativity of flourine is 4,while that of oxygen is 3.5.
Q5 Name the two PSUs, which were granted the Maharatna status by the Union Government of India in 2013? - a) ONGC and Gail b) NTPC and BHEL c) BHEL and GAIIL d) ONGC and NTPC
Q6 -The income tax in India is -a) indirect and progressive .b ) diret and proportional "c) direct and Regrassive d) indirect and proportional
ANS C Garibi Hatao desh bachao ("Abolish poverty, save the nation") was the theme and slogan of Indira Gandhi's 1971 election bid
ANS C - 1991, the Government set up the Tax Reforms Committee under the Chairmanship of Raja J. Chelliah
Q9 is the oldest national park in India -A.Kaziranga B.Pin Valley C.Jim Corbett National Park _D.Nagarahole (Rajiv Gandhi)
ANS C Kaziranga National Park~ Assam Pin Valley National Park ~Himachal Pradesh Jim Corbett National Park is the oldest national park in India and was established in 1936 Uttarkhand Nagarhole National Park, also known as Rajiv Gandhi National Park, is a wildlife reserve in the South Indian state of Karnataka.
Q10 Bangladesh and India share longest land border in the world A.3rd -B.5th -C.4th D.7th
Md Mustafizur Rahaman
Chemistry . Blogger (Pscguide.in) . Selected For WBCS 2017 Interview. Currently working as journalist in an esteemed daily.Taught math vari