Chemistry MCQ
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Chemistry Questions
Define the term ‘order of reaction’ for chemical reactions. The sum of powers of the concentrations of the reactants in the rate…
Electro Magnetic Induction
Ch. 6 Electro Magnetic Induction 1. In Lenz’s law which quantity is conserved ( a) Mass ( b) Momentum ( c) force…
Physics MCQ’s
Q.1 Boron has two isotopes 5B10 and 5B11. If atomic weight of Boron is 10.81 then ratio of 5B10 to 5B11 in…
Some Basic Concepts of Chemistry
Chemistry Chapter – 1 – Some Basic Concepts of Chemistry Class – XI Question 1.1: Calculate the molecular mass of the following:…
धातुओं के शुद्विकरण
धातुओं के शुद्विकरण क्षेत्र में उपसहसंयोजन यौगिक का अनुप्रयोग एक उदाहरण के साथ समझाइये निकिल के शोधन की माण्ड विधि में निक्रिल…
Atomic MCQ’s
1. The ratio of the e/m values of a proton and an α-particle is (a) 2 : 1 (b) 1 : 1…
Chemistry MCQ for Exam
1 Mole fraction of glycerine C3H5(OH)3 in solution containing 36 g of water and 46 g of glycerine is …
GIVE REASONS – ALCOHOLS, PHENOLS & ETHERSGIVE REASONS –
Ortho and para-nitrophenols are more acidic than phenol. Due to -R-effect of NO2 group, o-and p-nitro phenoxide ions are more stable than…
ORGANIC CHEMISTRY GIVE REASONS – HALOALKANES AND HALOARENES
Why is sulphuric acid not used during the reaction of alcohols with KI? H2SO4 cannot be used along with KI in the…