NDA Government Jobs Exams

Which one among the following is the chemical formula of gypsum which is an ingredient of cement ?
(a) Ca2SiO4 (b) CaSO4.2H2O (c) CaO (d) CaSO4.3H2O

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NDA Other Question

Consider the following statement :
"No Indian could have started the Indian national Congress … if the founder of the congress had not been a
great Englishman and a distinguished ex-official, such was the distrust of political agitation in those days that
the authority would at once found some way or the other to suppress the movement."
Who among the following gave the statement on the establishment of Indian National Congress ?
(a) W. Wedderburn
(b) G.K. Gokhale
(c) R. Plame Dutt
(d) Allan Octavian Hume Which of the following statements in connection with the properties of water is/are correct ?
1. Water has higher specific heat in comparison with other liquid
2. Water has no dipole moment
3. Water has low heat of vaporization
Select the correct answer using the code given below
(a) 1 only
(b) 2 and 3
(c) 1 and 3
(d) 3 only