Which of the following substances is insoluble in water? 

The mathematical knowledge which is the basis of computer?

Which country has unveiled recently World's first train that operates on a virtual track using sensor technology?  

Where is the Satish thawan Space Station located?

Under which article of the constitution can the central government give directions to the state governments?

Which process check to ensure the components of the computer are operating and connected properly?

Which polymer is used to manufacture the cabinets of radio and TV? 

Was the only Muslim princely state of Rajasthan?