Class 12 Chemistry Important Questions | Chapter 7 Elements Of Group 16,17 & 18

Here we have a given Class 12 Chemistry Important Questions for Maharashtra Board HSC Examination 2024. Every students want to score good marks in Class 12 Board Exam,but number of students don't know how to score good marks. Dear students, following given questions had been asked in earlier HSC Board Examinations. From this post, you will know which type of questions had been asked in earlier Board Exams and same questions or same type of questions will be asked in your upcoming examination. If you study all these questions, you will get very good marks in your board examinations, Because so many questions from the following given questions will be asked in your upcoming examination.Therefore go through our Class 12 Chemistry Important Questions which are given in chapter-wise manner and simply try to solve these questions to score very good marks in Chemistry and obviously, you will! Best wishes to all dear students for your upcoming Maharashtra State Board Exam 2024.


यहां हमारे पास महाराष्ट्र बोर्ड HSC परीक्षा 2024 के लिए कक्षा 12वीं के Chemistry के महत्वपूर्ण प्रश्न दिए गए हैं। प्रत्येक छात्र कक्षा 12वीं की बोर्ड परीक्षा में अच्छे अंक प्राप्त करना चाहते हैं, लेकिन कई छात्र यह नहीं जानते कि अच्छे अंक कैसे प्राप्त करें। प्रिय छात्रों, नीचे दिए गए प्रश्न पिछले एचएससी बोर्ड परीक्षाओं में पूछे गए थे। इस पोस्ट से आप जानेंगे कि पिछली बोर्ड परीक्षाओं में किस प्रकार के प्रश्न पूछे गए थे और आपकी आगामी परीक्षा में भी इसी प्रकार के प्रश्न पूछे जाएंगे। यदि आप इन सभी प्रश्नों का अध्ययन करते हैं, तो आप अपनी बोर्ड परीक्षाओं में बहुत अच्छे अंक प्राप्त करेंगे, क्योंकि निम्नलिखित दिए गए प्रश्नों में से बहुत सारे प्रश्न आपकी आगामी परीक्षा में पूछे जाएंगे। इसलिए हमारे कक्षा 12 के Chemistry के महत्वपूर्ण प्रश्नों को देखें जो अध्याय में दिए गए हैं | Chemistry में बहुत अच्छे अंक प्राप्त करने के लिए इन प्रश्नों को बुद्धिमान तरीके से हल करने का प्रयास करें और जाहिर है, आप करेंगे! सभी प्रिय छात्रों को आपकी आगामी महाराष्ट्र राज्य बोर्ड परीक्षा 2024 के लिए शुभकामनाएं।



Class 12 Chemistry Important Questions | Chapter 7 Elements Of Group 16,17 & 18

• Draw structure and write geometry of PCl3 and PCl5. (March 2013)

• What is the action of the following reagents on ammonia?
(a) Excess of air
(b) Excess of chlorine
(c) Na metal (March 2013)

•Explain the trends in the following properties with reference to group 16 :
(a) Atomic radii and ionic radii
(b) Density
(c) Ionisation enthalpy
(d) Electronegativity (March 2013)

•What is the action of chlorine (Cl2) on the following :
(a) Cold and dilute caustic soda.
(b) Hot and concentrated caustic soda.
(c) Potassium bromide solution. (Oct.2013)

• NF3 is possible, but NF5 is not. Why? (Oct. 2013)

• Draw the structure of H3PO3 hypophosphoric acid. What is the action of heat on potassium permangnate? (Oct. 2013)

• Write electronic configuration and two uses of neon (Z = 10). (Oct. 2013)

• Write resonating structures of ozone. (March 2014)

• Describe anomalous behaviour of fluorine with the other elements of group 17 with reference to:
(a) Hydrogen bonding
(b) Oxidation state
(c) Polyhalide ions (March 2014) 

• What is the action of the following reagents on ammonia:
(a) Nessler's reagent
(b) Sodium metal (March 2014)

• Explain brown ring test with the help of chemical equation. (March 2014)

• Describe anomalous behaviour of oxygen as compared with other elements of group 16 with reference to
(a) Magnetic property
(b) Oxidation state
(c) Hydrides (Oct. 2014)

• Describe the laboratory method of preparation of ammonia. (Oct. 2014)

• What is the action of hot/concentrated nitric acid on-
(a) Arsenic
(b) Antimony (Oct. 2014) 

• Draw the structure of:
(a) Orthophosphoric acid
(b) Pyrophosphoric acid (Oct. 2014)


• Explain the structure of sulphur dioxide. (March 2015)

• Explain how does nitrogen exhibit anomalous behaviour amongst group 15 elements. (March 2015)

• Write molecular formulae and structures of the following compounds:
(1) Dithionic acid
(2) Peroxy monosulphuric acid
(3) Pyrosulphuric acid
(4) Dithionous acid (March 2015)

• Write four points of differences between properties of Nitrogen and other elements of group 15. Explain the structure of ClF3. (March 2016)

• Nitrogen does not form pentahalides. Give reason. (March 2017)

• Write the electronic configuration of the following elements : 
(a) Sulphur
(b) Krypton (March 2017)

• Write any two uses of each of the following :
(a) H2SO4
(b) Chlorine (March 2017)

• Draw and explain the structure of sulphur dioxide. (March 2015)

• Nitrogen does not form pentahalides. Give reason. (March 2019)

• Explain the anomalous behaviour of oxygen with respect to
(a) Magnetic behaviour
(b) Multiple bonds (March 2019)

• Complete the following reaction : Se + Cl2 (March 2019)

• write two uses of each of the following :
(a) Helium
(b) Neon (March 2020)

• Draw the structure of sulphurous acid. Explain why Nitrogen does not form pentahalides. (March 2020)

• How is Oxygen prepared from the following compounds?
(a) KCLO4
(b) PbO2 (March 2020)


👉 Students are suggested to go through our Class 12 Chemistry Important Questions to score more in your upcoming 2024 Board Examination. 👇👇

Class 12 Chemistry Important Questions Chapter-wise

 Click on the following links to get Class 12 Chemistry Important Questions.👇👇

• Chapter 1 - Solid States


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