21. Which one of the following is not correctly matched pair?
(A) G° = 0, Keq= 1
(B) G° < 0, Keq< 1
(C) G° > 0, Keq< 1
(D) G° < 0, Keq > 1
22. How many chain isomers are possible for the alkane having molecular formula C6H14 ?
(A) 2
(B) 1
(C) 3
(D) 5
23. Choose the correct statement among following options.
(A) Water is splitted in non-cyclic phosphorylation
(B) P700 system is not active in non-cyclic phosphorylation
(C) In cyclic phosphorylation electron flow is unidirectional
(D) Oxygen is evolved in cyclic phosphorylation
24. What is the IUPAC name of the element having atomic number 101 ?
(A) Unnilbium
(B) Unununnium
(C) Ununnillium
(D) Unnilunium
25. Which of the following product is obtained on acetylation of glucose with acetic anhydride?
(A) Glucose Triacetate
(B) Glucose Tetraacetate
(C) Glucose Pentaacetate
(D) Glucose Hexaacetate
26. Which of the following zones of a biosphere reserve should be kept free from all types of human activities ?
(A) Central zone
(B) Core zone
(C) Buffer zone
(D) Transition zone
27. What is pH value of human blood?
(A) 7.0
(B) 7.4
(C) 8.4
(D) 6.4
28. Widal test is used to detect the following
(A) Pneumonia
(B) Malaria
(C) Typhoid
(D) Filariasis
29. Which one of the following expression shows correct relationship between temperature °F and °C scales?

30. Which of the following is the Triploid variety of Marigold?
(A) Pusa Narangi Genda
(B) Climax
(C) Golden Age
(D) Nugget
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