1. Which of the following is a use of microwaves?
A. WiFi, mobile phone signalB. Detection of fake currency and fake passportsC. Remote control and communication through optical fiberD. Imaging inside the human body
2. Which provides internal stimulation for cell cycle?
A. Various hormonesB. Cyclin- CDK compoundC. Growth factorD. Erythropoietin
3. What is the correct order of decrease in melting point of calcium halides?
A. CaF2 > CaCl2 > CaBr2 > CaI2B. CaI2 > CaBr2 > CaCl2 > CaF2C. CaI2 > CaCl2 > CaBr2 > CaF2D. CaCl2 > CaF2 > CaBr2 > CaI2
4. Which oxyacid has more strength?
A. HNO3B. H2CO3C. HNO2D. H3P O4
5. Incorrect information about LPG-
A. OdorlessB. Clean fuelC. Produces and CO on combustion CO2D. Calorific value: 94000 kJ mL−1 94000 kJ m−3
6. What is produced by Na metal, Chlorobenzene and methyl chloride in presence of dry ether?
A. XyleneB. TolueneC. Ortho Chloro TolueneD. Acetophenone (C6H5 − R) (Ar − R)