Questions

Why is Carbon Monoxide a pollutant ?

____ is the most electropositive and ___ is the most electronegative element of the third period of modern periodic table.

A solid sphere of radius 6 cm is melted and re-casted into a hollow cylinder of uniform thickness. If the external radius of the base of the cylinder is 5 cm and its height is 32 cm, find the uniform thickness of the cylinder ?

$$\begin{gathered} ∆ABC is similar to ∆PQR. If ratio of perimeters of ∆ABC and ∆PQR is 1:2 and \\ if PQ = 10 cm then what is the length of AB (in cm)? \end{gathered}$$

Who was the first female emperor of India?

In each of the following questions three statements are given and these statements are followed by two conclusions numbered (1) and (2). You have to take the given three statements to be true even if they seem to be at variance from commonly known facts. Read the conclusions and then decide which of the given conclusions logically follows from the two given statements, disregarding commonly known facts.
Statements:

All books are novels.
No novel is a magazine.
All magazines are newspaper.
Conclusions: 

I.No book is a magazine.
II. Some newspaper are novels.

In the following question, some part of the sentence may have errors. Find out which part of the sentence has an error and select the appropriate option. If a sentence is free from error, select 'No Error'.

The average age at which(A)/people die of heart diseases(B)/are decreasing.(C)/No error(D)

All this does not bode _______________ for even the loosest definitions of cosmopolitanism. A city by definition is a space, as ________________ historians and sociologists have already told us, which ideally privileges and _________________ the unexpected encounter, and calls on its citizens to be able to respond humanely even to those _______________ are not linked to us in familial, ethnic, nationalist or caste ___________________.

A city by definition is a space, as ________________ historians and sociologists have already told us