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All Hills are Mountains (A) → Conversion → Some Mountains are Hills (I) + No Hill is River (E) → Some Mountains are not Rivers (O). Hence conclusion I does not follow. No Hill is River (E) + Some Rivers are Road (I) → Some Road are not Hills (O*). Hence conclusion II does not follow. All Hills are Mountains (A) → Conversion → Some Mountains are Hills (I). Hence conclusion III follows.
Alkali metals have ______.
I. low melting points
II. low densities
Which of the following is used as a moderator in nuclear reactors?
Which of the following alkali metals has the highest specific heat?
Which of the following is also known as wood alcohol?
Acid reacts with metal to form salt and liberates _________ gas.
The conversion of hard water into soft water by boiling or adding calcium hydroxide is called:
In which form is iron ore primarily found in nature?
How many planets are terrestrial planets?
What is the viscosity of an ideal fluid?
To prevent heart problems, blood of a normal healthy person should have