4- Magnetic quantum value for the 24th electron is –
1- 1 2- – 1. 3- -2. 4- 0
5- Metal detectors kept in security zones work on the principle of-
1- Oersted. 2- Ampere Rule. 3- Fleming’s Right hand rule. 4- Electromagnetic Induction.
6-Concentration of ore does not include-
1- Froth Flotation. 2- Washing. 3- Magnetic Separation. 4- Distillation.
7- Number of hydrogen atoms present in cyclopentane are –
1- 8. 2- 14 3- 10 4- 12
8- The element which does not exhibit catenation is –
1- Sulphur. 2- Phosphorous. 3- Carbon. 4- Copper.
9- The image formed due to a plane mirror will not obey-
1- The objective distance is always equal to the image distance. 2- The image undergoes lateral inversion. 3- The size of the image is proportional to the size of the mirror. 4- The size of the image is always equal to the size of the object.
10- Refractive Index gives an idea of –
1-The density of the transparent medium. 2-How hard or how soft the material medium is. 3- How fast or how slow the light travels in that medium. 4- The physical state of the material medium.
ANS-
1- Its inductance and resistance. 2- Potential difference. 3-Urea. 4- 1 5-Electromagnetic Induction. 6-Distillation.
7-10 8-Copper. 9-The size of the image is proportional to the size of the mirror. 10-How fast or how slow the light travels in that medium.