
	Trending ▼ ICSE CBSE 10th ISC CBSE 12th CTET GATE UGC NET Vestibulares ResFinder

GATE 2018 : Life Sciences [Section P / Chemistry] (with Final Answer Keys)

11 pages, 30 questions, 0 questions with responses, 0 total responses,

	gate	+Fave Message
	Profile Timeline Uploads Q & A

Home > gate >

Formatting page ...

GATE 2018 General Aptitude (GA) Set-1 Q. 1 Q. 5 carry one mark each. Q.1 Going by the _________ that many hands make light work, the school _______ involved all the students in the task. The words that best fill the blanks in the above sentence are (A) principle, principal (C) principle, principle Q.2 (B) principal, principle (D) principal, principal Her _______ should not be confused with miserliness; she is ever willing to assist those in need. The word that best fills the blank in the above sentence is (A) cleanliness Q.3 (D) greatness (B) 7 (C) 100 (D) 700 A rectangle becomes a square when its length and breadth are reduced by 10 m and 5 m, respectively. During this process, the rectangle loses 650 m2 of area. What is the area of the original rectangle in square meters? (A) 1125 Q.5 (C) frugality Seven machines take 7 minutes to make 7 identical toys. At the same rate, how many minutes would it take for 100 machines to make 100 toys? (A) 1 Q.4 (B) punctuality (B) 2250 (C) 2924 (D) 4500 A number consists of two digits. The sum of the digits is 9. If 45 is subtracted from the number, its digits are interchanged. What is the number? (A) 63 (B) 72 (C) 81 (D) 90 Q. 6 Q. 10 carry two marks each. Q.6 For integers , and , what would be the minimum and maximum values respectively of + + if log | | + log | | + log | | = ? (A) -3 and 3 GA (B) -1 and 1 (C) -1 and 3 (D) 1 and 3 1/2 GATE 2018 Q.7 Given that and are integers and statements is correct? (A) and are both odd (C) is even and is odd Q.8 + is odd, which one of the following (B) and are both even (D) is odd and is even From the time the front of a train enters a platform, it takes 25 seconds for the back of the train to leave the platform, while travelling at a constant speed of 54 km/h. At the same speed, it takes 14 seconds to pass a man running at 9 km/h in the same direction as the train. What is the length of the train and that of the platform in meters, respectively? (A) 210 and 140 (C) 245 and 130 Q.9 General Aptitude (GA) Set-1 (B) 162.5 and 187.5 (D) 175 and 200 Which of the following functions describe the graph shown in the below figure? (A) (C) = || | + | = || | + | (B) (D) = || | | = || | | Q.10 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? (A) If (i) is true and (ii) is false, then (iii) is false. (B) If (i) is true and (ii) is false, then (iii) is true. (C) If (i) and (ii) are true, then (iii) is true. (D) If (i) and (ii) are false, then (iii) is false. END OF THE QUESTION PAPER GA 2/2 Chemistry (COMPULSORY) XL-P GATE 2018 Q. 1 Q. 5 carry one mark each & Q. 6 Q. 15 carry two marks each XL-P: Q.1 For the complete combustion of graphite and diamond in oxygen individually, the standard enthalpy change ( Ho298) values are 393.5 kJ mol 1 and 395.4 kJ mol 1, respectively. Then, the Ho298 for the conversion of graphite into diamond is (A) +1.9 kJ mol 1 Q.2 (B) 3 (D) 3.8 kJ mol 1 (C) 1 (D) 0 (C) sp3 (D) sp3d Hybridization of xenon in XeF2 is (B) sp2 (A) sp Q.4 (C) +3.8 kJ mol 1 For a 4s orbital of hydrogen atom, the magnetic quantum number (ml) is (A) 4 Q.3 (B) 1.9 kJ mol 1 Two equivalents of P react with one equivalent of Q to produce a major product R. H3C CH3 CH3 CH3 CHO P = Q = (C6H5)3P P(C6H5)3 CH3 CH3 The number of double bonds present in the major product R is _______. Q.5 The total number of possible stereoisomers for the compound with the structural formula CH3CH(OH)CH=CHCH2CH3 is _______. Q.6 Among B H, C H, N H and Si H bonds in BH3, CH4, NH3 and SiH4, respectively, the polarity of the bond which is shown INCORRECTLY is (A) B + H Q.7 (B) C H + (C) N H + (D) Si H + Among the following statements, (i) [NiCl4]2 (atomic number of Ni = 28) is diamagnetic (ii) Ethylamine is a weaker Lewis base compared to pyridine (iii) [NiCl2{P(C6H5)3}2] has two geometrical isomers (iv) Bond angle in H2O is greater than that in H2S, the CORRECT one is (A) (i) XL-P (B) (ii) (C) (iii) (D) (iv) 1/3 Chemistry (COMPULSORY) XL-P GATE 2018 Q.8 In [Mn(H2O)6]2+ (atomic number of Mn = 25), the d-d transitions according to crystal field theory (CFT) are (A) (B) (C) (D) Q.9 Laporte forbidden and spin forbidden Laporte allowed and spin allowed Laporte forbidden and spin allowed Laporte allowed and spin forbidden The major product M in the reaction CH3 (i) O3 M + CH2O (ii) Zn, AcOH H3C CH2 is O O O H3C CH3 (A) (B) H O H CH3 CH3 O O O (C) O H3C O H (D) CH3 O O H3C CH3 H O Q.10 The two major products of the reaction NHCH2CH3 CH3 (i) excess CH3I (ii) Ag2O, H2O, are (A) N(CH3)2 CH3 and CH2=CH2 and N(CH3)2CH2CH3 and N(CH3)2CH2CH3 and HN(CH3)CH2CH3 CH3 (B) CH3 (C) CH3 (D) XL-P 2/3 Chemistry (COMPULSORY) XL-P GATE 2018 Q.11 The compound, which upon mono-nitration using a mixture of HNO3 and H2SO4, does NOT give the meta-isomer as the major product, is CF3 NO2 (A) (B) COOH NHCOCH3 (C) (D) Q.12 The standard reduction potential (Eo) for the conversion of Cr2O72 to Cr3+ at 25 C in an aqueous solution of pH 3.0 is 1.33 V. The concentrations of Cr2O72 and Cr3+ are 1.0 10 4 M and 1.0 10 3 M, respectively. Then the potential of this half-cell reaction is (Given: Faraday constant = 96500 C mol 1, Gas constant R = 8.314 J K 1 mol 1) (A) 1.04 V (B) 0.94 V (C) 0.84 V (D) 0.74 V Q.13 The solubility product (Ksp) of Mg(OH)2 at 25 C is 5.6 10 11. Its solubility in water is S 10 2 g/L, where the value of S is _______ (up to two decimal places). (Given: Molecular weight of Mg(OH)2 = 58.3 g mol 1) Q.14 The activation energy (Ea) values for two reactions carried out at 25 C differ by 5.0 kJ mol 1. If the pre-exponential factors (A1 and A2) for these two reactions are of the same magnitude, the ratio of rate constants (k1/k2) is _______ (up to two decimal places). (Given: Gas constant R = 8.314 J K 1 mol 1) Q.15 One mole of helium gas in an isolated system undergoes a reversible isothermal expansion at 25 C from an initial volume of 2.0 liters to a final volume of 10.0 liters. The change in entropy ( S) of the surroundings is ______ J K 1 (up to two decimal places). (Given: Gas constant R = 8.314 J K 1 mol 1) END OF THE QUESTION PAPER XL-P 3/3 Q.No. Type Section Key/Range Marks 1 MCQ GA A 1 2 MCQ GA C 1 3 MCQ GA B 1 4 MCQ GA B 1 5 MCQ GA B 1 6 MCQ GA A 2 7 MCQ GA D 2 8 MCQ GA D 2 9 MCQ GA B 2 10 MCQ GA C 2 1 MCQ XL P A 1 2 MCQ XL P D 1 3 MCQ XL P D 1 4 NAT XL P 11 to 11 1 5 NAT XL P 4 to 4 1 6 MCQ XL P D 2 7 MCQ XL P D 2 8 MCQ XL P A 2 9 MCQ XL P D 2 10 MCQ XL P A 2 11 MCQ XL P C 2 12 MCQ XL P B 2 13 NAT XL P 1.39 to 1.43 2 Q.No. Type Section Key/Range Marks 14 NAT XL P 7.39 to 7.54 2 15 NAT XL P 13.40 to 13.36 2 1 MCQ XL Q B 1 2 MCQ XL Q A 1 3 MCQ XL Q C 1 4 MCQ XL Q C 1 5 MCQ XL Q D 1 6 MCQ XL Q C 1 7 MCQ XL Q D 1 8 MCQ XL Q B 1 9 NAT XL Q 12 to 12 1 10 NAT XL Q 50 to 50 1 11 MCQ XL Q A 2 12 MCQ XL Q A 2 13 MCQ XL Q D 2 14 MCQ XL Q B 2 15 MCQ XL Q B 2 16 NAT XL Q 512 to 512 2 17 NAT XL Q 20 to 20 2 18 NAT XL Q 0.8 to 0.8 2 19 NAT XL Q 77 to 77 2 20 NAT XL Q 8862 to 8862 2 1 MCQ XL R A 1 Q.No. Type Section Key/Range Marks 2 MCQ XL R B 1 3 MCQ XL R C 1 4 MCQ XL R D 1 5 MCQ XL R B 1 6 MCQ XL R C 1 7 MCQ XL R A 1 8 MCQ XL R A 1 9 MCQ XL R B 1 10 NAT XL R 28.00 to 31.00 1 11 MCQ XL R D 2 12 MCQ XL R D 2 13 MCQ XL R C 2 14 MCQ XL R B 2 15 MCQ XL R C 2 16 MCQ XL R D 2 17 MCQ XL R A 2 18 MCQ XL R B 2 19 NAT XL R 20.25 to 20.25 2 20 NAT XL R 11.00 to 12.00 2 1 MCQ XL S B 1 2 MCQ XL S A 1 3 MCQ XL S A 1 4 MCQ XL S D 1 Q.No. Type Section Key/Range Marks 5 MCQ XL S D 1 6 MCQ XL S C 1 7 MCQ XL S D 1 8 MCQ XL S B 1 9 MCQ XL S A 1 10 NAT XL S 1.38 to1.42 1 11 MCQ XL S C 2 12 MCQ XL S C 2 13 MCQ XL S A 2 14 MCQ XL S D 2 15 MCQ XL S B 2 16 MCQ XL S A 2 17 NAT XL S 2.60 to 2.80 2 18 NAT XL S 0.5 to 0.5 2 19 NAT XL S 45.50 to 46.50 2 20 NAT XL S 30.5 to 31.5 2 1 MCQ XL T C 1 2 MCQ XL T B 1 3 MCQ XL T A 1 4 MCQ XL T D 1 5 MCQ XL T C 1 6 MCQ XL T D 1 7 MCQ XL T B 1 Q.No. Type Section Key/Range Marks 8 MCQ XL T A 1 9 MCQ XL T A 1 10 MCQ XL T C 1 11 MCQ XL T B 2 12 MCQ XL T D 2 13 MCQ XL T C 2 14 MCQ XL T C 2 15 MCQ XL T B 2 16 MCQ XL T D 2 17 MCQ XL T C 2 18 MCQ XL T A 2 19 NAT XL T 5270 to 5310 2 20 NAT XL T 0.056 to 0.062 2 1 MCQ XL U B 1 2 MCQ XL U A 1 3 MCQ XL U C 1 4 MCQ XL U A 1 5 MCQ XL U D 1 6 MCQ XL U D 1 7 NAT XL U 1.55 to 1.65 1 8 NAT XL U 103.0 to 103.2 1 9 NAT XL U 54 to 56 1 10 NAT XL U 0 to 0 1 Q.No. Type Section Key/Range Marks 11 MCQ XL U B 2 12 MCQ XL U C 2 13 MCQ XL U C 2 14 MCQ XL U A 2 15 MCQ XL U D 2 16 MCQ XL U A 2 17 MCQ XL U B 2 18 NAT XL U 9.8 to 10.2 2 19 NAT XL U 1.1 to 1.8 2 20 NAT XL U 10 to 10 2

Formatting page ...

Tags : India, GATE Exam Question Papers, Free Online Solutions, Answers, Answer Key, Graduate Aptitude Test in Engineering, IIT, IISc, GATE Exam Syllabus, GATE Study Material, GATE Exam Pattern, gate exam papers, gate question papers 2016, 2015, 2014, 2013, 2012, 2011, 2010, 2009, 2008, 2007, 2006, 2005, 2004, 2003, 2002, 2001, 2000, 1999, 1998, 1997, 1996, 1995, 1994, 1993, 1992, 1991, past gate papers, gate papers with answers, gate entrance exam engineering, gate previous years papers, gate old papers, gpat.

gate chat

Horizontal lines at:
Guest Horizontal lines at:
AutoRM Data:
Box geometries: