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Q. Important applications of indium?
The most important applications of indium are in protection of bearings against wear and erosion in low melting alloys and in electronic devices. Thallous salts being toxic are used as fungicides germicides and in ointments used for the treatment of ring worms. Thallium compounds find applications in preparing optical glass on account of their high refractive power.
Q. Show the Reactions of Boric Oxide? Boric oxide, B 2 0 3 , is the principal oxide of boron. It is also known as boron trioxide, boron sesquioxide and boric anhydride. It is p
Q. Explain laws of Electrolysis? Ans . A spontaneous reaction takes place by itself. Some redox reactions are not spontaneous. In a no n-spontaneous redox reaction ,
trend of atomic size
Which of the following sequence is correct as per Aufbau principle: (1) 3s (2) 1s (3) 2s (4) 2s Ans: 1s
Uses of pyrogallol (a) As a developer in photography. (b) As a hair dye. (c) In medicine of skin diseases like eczema. (d) For absorbing none reacted oxygen in gas ana
Demonstrate the effect of foaming in preparation of cold and hot souffles? After undertaking this activity, you will be able to: • learn how to prepare hot and cold souffle,
how dioxygen is transport and stored in human body
How priming and foamg formedi
1. Air is available at 70°F and humidity of 0.001lb/lb. It is to be treated to yield 130°F and 70% humidity. Offer a reasonable design. 2. A mix of granular ceramic
Q. Show General Characteristics of group16? The valence shell electronic configuration of Group 16 elements is ns 2 , ns 4 . These elements tend to gain inert gas configuration
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