Which is true about Zn-Cu galvanic cell ? April 15, 2025 by admin A. Reduction occurs at anode B. K+ ion transfer from salt bridge to left beaker of ZnSO4 C. Oxidation occurs at cathode D. Anode is negatively charged
Nitrates of which pair gives different products on thermal decomposition___________________? April 15, 2025 by admin A. Na K B. Mg Ca C. Li Na D. Li Ca
Keeping in view the size of atom which is in correct order___________________? April 15, 2025 by admin A. Mg > Sr B. Ba > Mg C. Lu > Ce D. CI > 1
Which one is not the use of silicones________________________? April 15, 2025 by admin A. Lubricant B. Water repellent film C. Rubber sheet D. Medicine
Chemical composition of cinnabar is____________________? April 15, 2025 by admin A. FeS2 B. HgS C. PbS D. ZnS
In the complex [Cr(OH)3(H2O)3] the coordination number is __________________? April 15, 2025 by admin A. 2 B. 3 C. 4 D. 6
A great variety of the organic compounds is due to its property of carbon_________________? April 15, 2025 by admin A. Show tetravalency B. Exhibit catenation C. Show isomerism D. Can form multiple bonds
Vinyl acetylene combines with hydrochloric acid produces___________________? April 15, 2025 by admin A. Diviny1 acetylene B. Ethylidine dichloride C. Chloroprene D. 1 – 3 – 3 – trichloro butane
When toluene reacts with chlorine in sunlight the first major product is__________________? April 15, 2025 by admin A. Benzy1 chloride B. Benzal dichloride C. O-chlorotoluene D. O-chlorotoluene and P-chlorotoluene
Which one of the following is not a good leaving group ? April 15, 2025 by admin A. HSO4- B. Cl- C. OH- D. Br-
