Questions

The given sentence is in simple past. No improvement required.

When two or more chemical species combine to form a single product, the reaction is said to be synthesis reaction. It is also called as Direct Combination reaction.

Here in the given options, Sodium (Na) combines with Chlorine (Cl) to form a more complex single product Sodium Chloride (NaCl).

The P atom needs five orbitals to form the five P-Cl bonds. It has a 3s and three 3p orbitals, so it must use one of its 3d orbitals to form the fifth bond. These orbitals are hybridized to form five sp3d orbitals that just happen to point in the right directions to form a trigonal bipyramid.

Exercise can boost your memory and thinking skills by improvising alertness, attention and motivation.

Delhi state police has launched e-learning portal 'Nipun' for training all its police officers to give up to date information through specialized courses designed by experts.

Hima Das, nicknamed the "Dhing Express", is an Indian sprint runner from the state of Assam is appointed as the UNICEF India’s Youth Ambassador.

She holds the current Indian national record in 400 metres with a timing of 50.79 s that she clocked at the 2018 Asian Games in Jakarta, Indonesia

As per the decision of the GST Council, e-Way Bill system has been rolled out from 1st of April this year (2018).