GATE XL 2018 Paper 1 — page 4

Questions 10–12 of 125. Imported answers require review unless explicitly marked reviewed.

Paper practice 125 questionsPage 4 of 42

Consider the following three statements:

(i) Some roses are red. (ii) All red flowers fade quickly. (iii) Some roses fade quickly.

Which of the following statements can be logically inferred from the above statements?

Your answerChoose one option.

If (i) is true and (ii) is false, then (iii) is false.

If (i) is true and (ii) is false, then (iii) is true.

If (i) and (ii) are true, then (iii) is true.

If (i) and (ii) are false, then (iii) is false.

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For the complete combustion of graphite and diamond in oxygen individually, the standard enthalpy change (

) values are −393.5 kJ mol

and −395.4 kJ mol

, respectively. Then, the

for the conversion of graphite into diamond is

Your answerChoose one option.

+1.9 kJ mol

−1.9 kJ mol

+3.8 kJ mol

−3.8 kJ mol

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For a 4s orbital of hydrogen atom, the magnetic quantum number (

) is

Your answerChoose one option.

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2018 · Paper 1