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Chemistry jee main questions
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Chemistry jee main questions
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JEE-MAIN – 2019-20TEST SERIES
SET-A
Instructions:
Time: 3 hours Maximum Marks: 360
Important Instructions
01. Immediately fill in the particulars on this page of the Test Booklet with Blue/Black Ball Point Pen. Use of pencil is
strictly prohibited.
02. The answer Sheet is kept inside this Test Booklet. When you are directed to open the Test Booklet, take out the
Answer Sheet and fill in the particulars carefully.
03. The test is of 3 hours duration.
04. The Test Booklet consists of 90 questions. The maximum marks are 360.
05. There are three parts in the question paper A, B, C consisting of Physics, Chemistry & MATHEMATICS. Each
question is allotted 4 (four) marks for correct response.
06. Candidates will be awarded marks as stated above in Instructions No. 5 for correct response of each question. one
marks will be deducted for indicating incorrect response of each question. No deduction from the total score will be
made if no response is indicated for an item in the answer sheet.
07. There is only one correct response for each question. Filling up more than one response in any question will be treated
as wrong response and marks for wrong response will be deducted accordingly as per instructions 6 above.
08. Use Blue/Black Ball Point Pen only for writing particulars/marking responses on Side-1 and Side-2 of the Answer
Sheet. Use of pencil is strictly prohibited.
09. No candidate is allowed to carry any textual material, printed or written, bits of papers, pager, mobile phone, any
electronic device, etc., except the Admit Card inside the examination hall/room.
10. Rough work is to be done on the space provided for this purpose in the Test Booklet only. This space is given at the
bottom of each page and in one page at the end of the booklet.
11. On completion of the test, the candidate must hand over the Answer Sheet to the Invigilator on duty in the Room/Hall.
However, the candidates are allowed to take away this Test Booklet with them.
12. The CODE for this Booklet is A. Make sure that the CODE printed on Side-2 of the Answer Sheet and also tally the
same as that on this booklet. In case of discrepancy, the candidate should immediately report the matter to the
invigilator for replacement of both the Test Booklet and the Answer Sheet.
13. Do not fold or make any stray marks on the Answer Sheet.
.
, SECTION – B (CHEMISTRY)
Q.31 Which of the following is the most abundant in the earth’s crust -
(A) Arsenic (B) Nitrogen
(C) Phosphorus (D) Antimony
Q.32 The electronic configuration of outermost shell of group 15 elements is -
(A) ns2np4 (B) ns2np3
(C) ns2np2 (D) ns2np1
Q.33 Which of the following does not show allotropy -
(A) Nitrogen (B) Phosphorus
(C) Arsenic (D) Antimony
Q.34 The correct order of thermal stability of hydrides of group 15 is -
(A) NH3 > PH3 > AsH3 > BiH3 > SbH3
(B) NH3 > PH3 > AsH3 > SbH3 > BiH3
(C) NH3 < PH3 < SbH3 > AsH3 > BiH3
(D) BiH3 > SbH3 > AsH3 > PH3 > NH3
Q.35 Arrange the hydrides of group 15 in the order of increasing boiling points -
(A) PH3 < AsH3 < SbH3 < BiH3 < NH3
(B) PH3 < AsH3 < SbH3 < NH3 < BiH3
(C) PH3 < AsH3 < NH3 < SbH3 < BiH3
(D) NH3 < PH3 < AsH3 < SbH3 < BiH3
Q.36 Arrange the group 15 hydrides in the increasing order of H–M–H bond angle.
(A) SbH3 < AsH3 < PH3 < NH3
(B) NH3 < PH3 < AsH3 < SbH3
(C) NH3 < SbH3 < AsH3 < PH3
(D) NH3 < PH3 < SbH3 < AsH3
Rough Work
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