EASY
UPSC CDS
IMPORTANT
Earn 100

Which one of the following elements is not detected by "Lassaigne’s test"?
(a)I
(b)Cl
(c)S
(d)F

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Important Questions on UPSC CDS (I) Previous Year Paper 2019
EASY
UPSC CDS
IMPORTANT
In which of the following, functional group isomerism is not possible?

EASY
UPSC CDS
IMPORTANT
Which one of the following statements is not correct?

EASY
UPSC CDS
IMPORTANT
The monomer/monomers used for the synthesis of Nylon is/are

EASY
UPSC CDS
IMPORTANT
Which one among the following stars is nearest to the earth?

EASY
UPSC CDS
IMPORTANT
Which of the following planets of our solar system has least mass?

EASY
UPSC CDS
IMPORTANT
Two identical solid pieces, one of gold and the other of silver, when immersed completely in water exhibit equal weights. When weighed in air (given that the density of gold is greater than that of silver)

MEDIUM
UPSC CDS
IMPORTANT
If the wavelengths corresponding to ultraviolet, visible and infrared radiations are given as , and respectively, then which of the following gives the correct relationship among these wavelengths?

HARD
UPSC CDS
IMPORTANT
An electron and a proton starting from rest get accelerated through a potential difference of . The final speeds of the electron and the proton are Ve and Vp respectively. Which of the following relations is correct?
