1) 1 2) 4 3) 3 4) no value of m for which vectors are coplanar Answer: (4) no value of m for which vectors are coplanar Solution: a=i+j+mk... View Article
1) 7i+2j-2k 2) -7i-2j+2k 3) 3i-j-k 4) -4i-3j+2k Answer: (1) 7i+2j-2k Solution: Since ABCDEF are the vertices of a regular hexagon in an... View Article
Dimethyl ether is highly volatile chemical which is toxic when inhaled. Vapours of dimethyl ether can cause irritation in eyes, nose and throat.... View Article
Zinc offers resistance against rusting and does not rust easily in water. To know about rust in a detailed and interesting way, subscribe BYJU’S!... View Article
Yes, the earth's core is magnetic. Earth’s magnetism is generated by convection currents of molten iron and nickel in the earth’s core. To know... View Article
Acetic anhydride is banned because it is highly corrosive chemical which is extremely dangerou when in contact. It was used in the manufacturing... View Article
Germanium is slightly radioactive. Germanium 70, Germanium 72, Germanium 73, Germanium 74 and Germanium 76 are the most common isotopes. To know... View Article
Gold is a good conductor. Gold also has the properties of a semiconductor. To know about properties of gold in a detailed and interesting way,... View Article
Metal coupling is a process used to prevent rusting of iron. In this process, iron is coupled with electro-positive metals like magnesium, zinc,... View Article
Yes, mercury is an excellent dielectric material. To know about dielectric materials in a detailed and interesting way, subscribe BYJU’S!... View Article
Nickel-metal hydride (NiMH) battery is better than nickel-cadmium (NiCd). NiMH battery is environmental-friendly and offers high capacity... View Article
