Questions

Name the Russian chemist who stated that the properties of elements are a periodic function of their atomic masses?

Sphalerite is an ore/mineral of

The gas evolved when sodium carbonate reacts with hydrochloric acid is

What is the atomicity of Phosphorous?

Gandhi Ji started the Non-Cooperation Movement in?

Which of the following organisation has approved a $25-30 billion commitment plan for India for the 2019-22 period? 

In the following passage, some of the words have been left out. Read the passage carefully and select the correct answer for the given blank out of the four alternatives.

Some writers have claimed that the ___________ of persons are incapable of even fairly correct reasoning, pointing to the absurd ideas entertained by the masses of people as a proof _______ the statement. These writers are probably a little radical _______ their views and statements, but one is often struck ______ wonder at the evidences of incapacity for interpreting __________ and impressions on the part of the general public.

as a proof _______ the statement.

The question below consists of a set of labelled sentences. These sentences, when properly sequenced form a coherent paragraph. Select the most logical order of sentences from among the options.

P: We may see alcohol and tobacco advertisements everywhere, on television, in newspaper, on street ads card etc.
Q: But we know the truth is alcohol and cigarette are harmful for people’s health and sometimes it may bring bad effects to self-impression.
R: Alcohol ads usually create several feints to tell people that alcohol is good for people and induce people to drink.
S: On the other hand, the malign influence of advertisements shows smoking as something "cool".