How does common salt help in separating soap from the
solution after saponification?
1 By decreasing solubility of soap
2 By increasing solubility of soap
3 By decreasing density of soap
4 None of these
Which of the following reagents gives a silver mirror test when added to aldehydes? 1 Fehling’s solution 2 Tollen’s Reagent 3 Ebaeyer’s Reagent 4 Nessler’s Reagent
When and where was the tata institute of fundamental research founded?
Which comet collided with jupiter?
Two or more forms of a chemical element having different physical properties but rising to identical chemical compounds are called 1 Allotropes 2 Isotopes 3 Isomers 4 Isotones
Which of the following fibers is least prone to fire? 1 Rayon 2 Nylon 3 Cotton 4 Terycott
How does a RCCB work? Difference between ELCB & RCCB?
In modern science, what is 'fourth dimension'?
Which of the following is used in making artificial sweetener saccharin? 1 Benzene 2 Toluene 3 Phenol 4 Aniline
Who discovered radio telescope?
The wavelength of X-ray is of order of 1 1 cm 2 1m 3 1 Angstrom 4 10 micron
What is the capacity of arihant’s atomic reactor?
The hydrogenation of the vegetables oils takes place in the presence of finely divided 1 Aluminium 2 Charcoal 3 Silica 4 Nickel