TS SI 2018

Instructions

For the following questions answer them individually

Question 101

Match the following:

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Question 102

Match the following:

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Question 103

Aqua regia also known as royal water or king’s water which can dissolve noble metals gold and platinum is a mixture of :

(a) Hydrochloric acid (b) Nitric acid
(c) Hydro bromic acid (d) Sulphuric acid

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Question 104

Household refrigerators work on the principle :

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Question 105

Heparin is an anticoagulant found in blood and it prevents blood clotting within blood vessels and it is preduced mainly from:

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Question 106

Identify the correct statement:

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Question 107

Match the following:

the correct match is:

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Question 108

Identify the correct statements :

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Question 109

Which is correct in the following ?
In an electric circuit -

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Question 110

Identify the correct statements from the following:
(a) CFCs are responsible for depletion of Ozone layer.
(b) Water vapour, methane, $$CO_2$$, CFCs, nitrous oxide are green house gases.
(c) The BOD value of pure water is 100 ppm.

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