Hello Aspirants. Welcome to Online General Knowledge section in Affairs cloud, which is important for all the competitive exams. We have created Some questions related to General Science(Chemistry) !!!
- Fermentation of milk to curd is due to ………………………..
5.None of theseAnswer – 4.LactobacillusExplanation :
Milk is converted into curd by the process of fermentation. When milk is heated and little curd is added the – the curd containing Lactobacillus multiplies in milk and thus milk is converted into curd.
- The natural source of Hydrocarbon is ……………
5.None of theseAnswer – 1.Crude oil
The natural source of Hydrocarbon is Crude Oil
- The acid used in the lead storage cell is
5.None of theseAnswer – 3.Sulphuric Acid
Dilute sulfuric acid (H2SO4) serves as the electrolyte in the lead storage cells.
- PVC is obtained by the polymerization of …………………………
5.None of theseAnswer – 2.Vinyl Chloride
Poly(vinyl chloride) is the plastic known at the hardware store as PVC. This is the PVC from which pipes are made, and PVC pipe is everywhere.
- Plasma is used in ………………..
3.Metal halide lamp
5.None of theseAnswer – 1.Fluorescent bulb
Electrons collide with and ionize noble gas atoms inside the bulb surrounding the filament to form a plasma by the process of impact ionization.
- ……………… is the most reactive allotropic form of phosphorous
5.None Of TheseAnswer – 2.White Phosphorous
White phosphorus is the least stable, the most reactive, the most volatile, the least dense, and the most toxic of the allotropes. White phosphorus gradually changes to red phosphorus.
- The Processes of effusion and diffusion are best understand by
5.None of theseAnswer – 3.Graham’s law
Graham’s law’, known as Graham’s law of effusion, was formulated by Scottish physical chemist Thomas
Graham in 1848.
Rate1/Rate 2 = √M2/ √M1
- Elements having high IP values are
5.None of theseAnswer – 2.Non Metals
The nonmetals like neon, Ne, fluorine, F, and oxygen, O, have relatively high Ionization Potential
- Who made volume and pressure correction to explain deviation of gases from ideal behaviour ?
3.Joseph Louis Gay-Lussac
5.None of theseAnswer – 4.Vander Waal
The van der Waals equation is an equation relating the density of gases and liquids to the pressure (p), volume (V), and temperature (T) conditions.It can be viewed as an adjustment to the ideal gas law that takes into account the non-zero volume of gas molecules, which are subject to a inter-particle attraction
- No change in atomic number is observed during …………….. emission
4.All of these
5.None of theseAnswer – 3.Gamma
Gamma decay Emits energy but Neither a proton nor a neutron is lost.