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4:20 @ @QiAT ul 100%
/ Chemistry / Chemistry 2024 Set 1
CBSE Sample Paper Class 11
Chemistry 2024 Set 1 PDF
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‘Time Allowed: 3 hours ‘Maximum Marks: 70
General Instructions: 1
1. There are 33 questions in this question paper with internal choice.
2. SECTION A consists of 16 multiple-choice questions carrying 1 mark each.
3. SECTION B consists of 5 very short answer questions carrying 2 marks each.
4, SECTION C consists of 7 short answer questions carrying 3 marks each,
5. SECTION D consists of 2 case-based questions carrying 4 marks each.
6. SECTION E consists of 3 long answer questions carrying 5 marks each.
7. All questions are compulsory.
8. The use of log tables and calculators is not allowed
Section A
1. Choose the most appropriate answer for the statement, "Rearrangement of atoms occurs whenever a chemical [1]
bond breaks or is formed, when
a) a chemical reaction takes place b) products appear,
6) catalysts are produced. 4) reactants disappear
2. Anatom of an element contains 29 electrons and 35 neutrons. The electronic configuration of an element ul
8) 192 262 2p6 362 3p6 4s! 310 b) 152 282 2p6 352 3p 4s? 3d 4s? 4p?
©) 152 2s? ap8 3s? 3p as! 3d? 4s? ) 15? 252 2p8 352 3p 4s? 3d 4s?
3. The enthalpies of all elements in their standard states are: ul
a) zero <0
©) unity 4) different for each element
4, According to the quantum theoretical model of an atom, each orbital is designated by three quantum numbers [1]
labelled as n, 1, and ml. The values these can take are:
a) o n=1,23.. db) o n=1,2,3..
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