1261 The Boiling Point of Ethyl Alcohol is_________? Chemistry Medium Full question → A 78°C B 58°C C 73°C D 56°C
1262 Why does Ethyl Alcohol show high boiling point then Acetone? Chemistry Medium Full question → A Due to Hydrogen bonding B Due to high molecular weight C Due to its Acidic nature D Due to its Low molecular weight
1263 Why do we determined the boiling point of a liquid? Chemistry Medium Full question → A To check its Acidity and Basicity B To Check temperature C To check its Purity and nature D None of These
1264 Which of the following can be separated by ” Sublimation Method”? Chemistry Medium Full question → A Sand and Iron Filing B Sand and Naphthalene C Both A & B D None
1265 The Chemical Formula of Sand is___________? Chemistry Medium Full question → A Si2O3 B SiO2 C Al2O3 D Sr2O
1266 Benzene gives mainly_________? Chemistry Medium Full question → A Addition reaction B Substitution reactions C Halogenation D All of these
1267 The Bond Energy of H-F is________? Chemistry Medium Full question → A 456kJ/mol B 562kJ/mol C 281kJ/mol D None
1268 The element used for the formation of alloys is__________? Chemistry Medium Full question → A Iron B Calcium C Mercury D Chromium
1269 Air is a/an _________? Chemistry Medium Full question → A Compound B Element C Electrolyte D Mixture
1270 Give Electronic configuration of Sodium: Chemistry Medium Full question → A 1s2,2s2,2p6 B 1s2,2s2,2p6,3s2 C 1s2,2s2,2p6,3s1 D None of these
1271 For the generation of biogas, the materials commonly used are__________? Chemistry Medium Full question → A Animal wastes B Forest residues C Aquatic plants D None of these
1272 Which of the following is not the name of any scientist? Chemistry Medium Full question → A Pauli exclusion principle B Hund’s rule C Aufbau’s principle D Le-Chatelier’s principle
1273 Which of the following is the most Viscous? Chemistry Medium Full question → A Glycerine B Water C Honey D Spirit
1274 Urea as a fertilizer contains:____________? Chemistry Medium Full question → A 57% N B 73% N C 46% N D 53% N
1275 Which molecule have stronger London dispersion forces? Chemistry Medium Full question → A Hydrogen gas B Water C Bromine D Hydrochloric acid
1276 The concept of ensemble was introduced by____________? Chemistry Medium Full question → A Boltzmann B Gibbs C Carnot D Mexwell
1277 Phonon is Quantum of___________? Chemistry Medium Full question → A Longitudinal wave B Elastic wave C Transverse wave D Electromagnetic wave
1278 Which gas is used for artificial ripening of green fruit ? Chemistry Medium Full question → A Carbon dioxide B Acetylene C Ethane D Ethylene
1279 Barret esophagus is good example of__________? Chemistry Medium Full question → A Atrophy B Dysplasia C Metaplasia D Hypertrophy