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
Which one of the following is a heterogeneous mixture?
Hydrochloric acid
Vinegar
Milk
Soda water
What is the molar mass of anhydrous sodium carbonate? (Given that the atomic masses of sodium, carbon and oxygen are 23 u, 12 u and 16 u respectively)
286 u
106 u
83 u
53 u
Which one of the following is called ‘syngas’?
C(s) + H2O(g)
CO(g) + H2O(g)
CO(g) + H2(g)
NO2(g) + H2(g)
The frequency of ultrasound waves is
less than 20 Hz
between 20 Hz and 2 kHz
between 2 kHz and 20 kHz
greater than 20 kHz
The magnetic field strength of a current carrying wire at a particular distance from the axis of the wire
Depends upon the current in the wire
Depends upon the radius of the wire
Depends upon the temperature of the surroundings
None of the above
