Indian army has published the notification for SSC Tech 56 men and SSC Tech 27 women for the course commencing at OTA Chennai from April 2021
In commercial preparation of hydrogen from water, ________ electrode is used.
Lithium
Platinum
Nickel
Titanium
Which one of the following was the first mineral acid discovered?
Sulphuric acid
Hydrochloric acid
Nitric acid
Phosphoric acid
Which of the given statements is not true about Lewis base?
It has an electron pair that is not involved in bonding
It can donate that lone pair.
NH3 is a Lewis base.
It has an empty orbital to accept a lone pair.
Number of molecules of water of crystallization in copper sulfate, sodium carbonate, and Gypsum are
5, 10 and 2 respectively
10, 2 and 5 respectively
5, 2 arid 10 respectively
2, 5 and 10 respectively
What is the main reason for the high boiling point of water?
Its polar nature.
The bond angle is linear
There is a covalent bond with H and O.
There is an association between H and O atoms due to hydrogen bonding.
