Question

101
stion Nos. 1 to 18 are Short Answer Type. Answer any 10 questions. Each qui
ies 2 marks:
10x
विशिष्ट चालकता एवं मोलर चालकता क्या है ? समझाइए।
What are specific conductance and molar conductance ? Explain.
द्रवरागी (लायोफिलिक) एवं द्रवविरागी (लायोफोबिक) कोलॉयड में अन्तर स्पष्ट करें।
Differentiate between Lyophilic and Lyophobic colloids.
एल्युमीनियम एवं ताँबा के मुख्य अयस्क का नाम एवं सूत्र लिखें।
Give the name and formula of the chief ore of aluminium and copper​

Answer 1

Here is your answer

Compared to railways the roadways are very expensive since most roadways transportation is by diesel or petrol both of which are costly. Railways are one of the cheapest modes of transport. Railways have both diesel enegine and electric engine. Roadways are connected immensely to all the places in our country.