Which is true about Zn-Cu galvanic cell ?
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
Chemistry MCQs
Nitrates of which pair gives different products on thermal decomposition___________________?
A. Na K B. Mg Ca C. Li Na D. Li Ca
Keeping in view the size of atom which is in correct order___________________?
A. Mg > Sr B. Ba > Mg C. Lu > Ce D. CI > 1
Which one is not the use of silicones________________________?
A. Lubricant B. Water repellent film C. Rubber sheet D. Medicine
Chemical composition of cinnabar is____________________?
A. FeS2 B. HgS C. PbS D. ZnS
In the complex [Cr(OH)3(H2O)3] the coordination number is __________________?
A. 2 B. 3 C. 4 D. 6
A great variety of the organic compounds is due to its property of carbon_________________?
A. Show tetravalency B. Exhibit catenation C. Show isomerism D. Can form multiple bonds
Vinyl acetylene combines with hydrochloric acid produces___________________?
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__________________?
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 ?
A. HSO4- B. Cl- C. OH- D. Br-