1. The number of protons, neutrons and electrons in 175Lu71, respectively, are(NEET 2020)(a) 71, 104 and 71 (b) 104, 71 and 71(c) 71, 71 and 104 (d) 175, 104 and…
1. Which of the following is a natural polymer? (NEET 2020)(a) cis-1, 4-polyisoprene(b) Poly (Butadiene-styrene)(c) Polybutadiene 5. Natural rubber has(d) Poly (Butadiene-acrylonitrile NEET-UG 2015 Chemistry Question Paper with Answer…
1. Sc (Z = 21) is a transition element but Zn (Z = 30) is not because element b (NEET 2013)(a) both Sc3+ and Zn2+ ions are colourless and form…
1.a) b) c) d) (c ) Chemistry Notes Download Physics Notes Download Biology Notes Download2. Reaction by which benzaldehyde cannot be prepareda) b) c) d) …
Q.46 Which of the following species contains equal number of σ – and π bonds?(1) HCO3-(2) XeO4(3) (CN)2(4) CH2(CN)2Q.47 The species Ar, K+ and Ca2+ contains the same number of…
By the this methods (click here) a dilute solution of hydrogen peroxide is obtained, which is concentrated by the following method - Chemistry Notes Download Physics Notes Download Biology Notes…