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
Assertion: If we kept water in an open vessel on the surface of the moon, that will evaporate very quickly.
Reason: The temperature of the moon’s surface is much higher than the boiling point of water.
If both Assertion and Reason are correct and Reason is the correct explanation of Assertion.
If both Assertion and Reason are correct, but Reason is not the correct explanation of Assertion
If Assertion is correct but Reason is incorrect.
If both the Assertion and Reason are incorrect.
On heating with conc. NaOH solution in an inert atmosphere of , white phosphorus gives a gas. Which of the following statement is false about the gas?
It is more basic than NH3
Its solution in water decay in the presence of light.
It is less basic than NH3
It is highly poisonous and has smelled like a rotten sh
If 6gm urea is dissolved in 500gm of water, then what will be the mass percentage of urea in the solution?
1.088%
1.186%
1.567%
2.088%
What was the basic idea behind keeping the elements in groups of a periodic table?
Electron afnity
Electronegativity
Ionization potential
Number of electrons in the valence shell
Which one of the following statements is false?
Corrosion leads to the contamination of the product
Replacement of corroded equipment is time- consuming
Corrosion Increase to the Electrical Conductivity of metals
Corrosion leads to the leakage of toxic liquid or gases.
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