Biology MCQ’s Quiz
WhatsApp Group Join Now Telegram Group Join Now Instagram Group Join Now Download Download Now Q.1 Number of base pairs in human chromosomes : (1) 3 ×10 9 (2) 3…
Chemistry MCQ Quiz
Download Download Now Download Download Now Q.1 Phenyl acetylene reacts with dil. H2SO4 in presence of HgSO4 gives : (1) (2) (3) (4) 1 Q.2 According to hardy Schultze law…
Physics MCQ’s
Download Download Now Q.1 The error in measurement of radius of a sphere is 0.1% then error in its volume is - (1) 0.3% (2) 0.4% (3) 0.5% (4) 0.6%…
Biology MCQ’s
Download Download Now WhatsApp Group Join Now Telegram Group Join Now Instagram Group Join Now Q.1 If Mendel might have studied 7 pairs of characters in a plant with 12…
Chemistry MCQ
WhatsApp Group Join Now Telegram Group Join Now Instagram Group Join Now Download Download Now Q.1 Correct order of –I effect is : (1) –NR3+ > OR > F (2)…
Chemistry Questions
Define the term ‘order of reaction’ for chemical reactions. The sum of powers of the concentrations of the reactants in the rate law expression is called the order of reaction.…
Electro Magnetic Induction
Ch. 6 Electro Magnetic Induction 1. In Lenz's law which quantity is conserved ( a) Mass ( b) Momentum ( c) force ( d) Energy 2. Two circular similar coaxial…
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 nature will be : (1) 15 : 16…
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: (i) H2O (ii) CO2 (iii) CH4 Answer 1.1:…
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 की किया कार्बन मोनो ऑक्साइड के कराने पर…