1201 In a group, atomic radii increase due to successive increase of _________ ? Chemistry Medium Full question → A Electronic shells B Proton shells C Neutron shells D Nucleus
1202 Chromatography is used to separate _________ ? Chemistry Medium Full question → A Solution B Mixtures C Molecules D Atoms
1203 In SI base units, 1 Bq is equal to __________ ? Chemistry Medium Full question → A 10 disintegration per second B 1.5 disintegration per second C 0.01 disintegration per second D 1 disintegration per second
1204 A helium nucleus comprising of two protons and two neutrons with a charge of 2e is _________ ? Chemistry Medium Full question → A Beta particle B Gamma particle C Alpha particle D Negative particle
1205 Elements which emit natural radioactivity are known as __________ ? Chemistry Medium Full question → A Radio elements B Active elements C Radioactive elements D Nuclear elements
1206 Alpha (α) particles are helium (He) nucleus with a charge of __________ ? Chemistry Medium Full question → A e B 2e C 3e D 4e
1207 Treatment of sucrose with conc. HNO3 gives__________? Chemistry Medium Full question → A Nitrosucrose B Glucose+ fructose C Oxalic acid D Laevulinic acid
1208 The systematic name of sucrose is_______? Chemistry Medium Full question → A 1-α-D- glucopyranosyl-2-β-D-fructopyranoside B 11-α-D-glucopyranosyl-2-β-D-fructofuranoside C 1-α-D- glucofuranosyl-2-α-D- fructopyranoside D 1-β- D- glucofuranosyl-2-α- D- fructofuranoside
1209 How many isomeric aldoses are possible for the molecular formula C6H12O6? Chemistry Medium Full question → A 2 B 4 C 7 D 16
1210 The IUPAC name of pyridines is__________? Chemistry Medium Full question → A Azolo B Azine C Azolidins D Diazine
1211 The hybridization of nitrogen atom in pyridine is_______? Chemistry Medium Full question → A Sp B Sp2 C Sp3 D It is not hybridized
1212 Following are the anions of soap which form Ca and Mg ions which we see as curd in water Chemistry Medium Full question → A Sodium hexadecanoate B Sodium octadecanoate C Sodium pentadecanoate D Both A & B
1213 Which of the following compounds is not soluble in HNO3___? Chemistry Medium Full question → A CuS B CdS C PbS D AgCl
1214 The amount of Zinc (at. Wt=65) necessary to produce 224 ml of H2 by the reaction with an acid will be______? Chemistry Medium Full question → A 0.065gm B 0.65gm C 6.5gm D 7.5gm
1215 The weight of a metal of equivalent of 12 which will give 0.475g of its chloride is_______? Chemistry Medium Full question → A 0.12g B 0.16g C 0.18g D 0.24g
1216 A brivalent metal has the equivalent weighr of 12. The molecular weight to its oxide will be_______? Chemistry Medium Full question → A 24 B 32 C 36 D 40
1217 When SO2 solution is passed over which of the following it turns green? Chemistry Medium Full question → A K2Cr2O7 B H2SO4 C SO3 D P2O5
1218 The composition of ‘ Golden spangles is_________? Chemistry Medium Full question → A PbCrO4 B PbI2 C As2Cr2O7 D BaCrO4
1220 Noble gases are so called zero group because they have:_________? Chemistry Medium Full question → A Zero Valency B Zero Electronegativity C Zero Electron Affinity D Both A and B