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Important Questions on Chemistry

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Haryana Staff Selection Commission Recruitment Exam - General Knowledge>Chapter 8 - Chemistry>Exam Pattern Questions>Q 87
Which of the following is responsible for the extra strength of pyrex glass?
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Haryana Staff Selection Commission Recruitment Exam - General Knowledge>Chapter 8 - Chemistry>Exam Pattern Questions>Q 88
The addition of gypsum to Portland cement helps in ______.
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Haryana Staff Selection Commission Recruitment Exam - General Knowledge>Chapter 8 - Chemistry>Exam Pattern Questions>Q 89
The element which is used for vulcanising rubber is _____.
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Haryana Staff Selection Commission Recruitment Exam - General Knowledge>Chapter 8 - Chemistry>Exam Pattern Questions>Q 90
PVC is obtained by the polymerisation of:
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Haryana Staff Selection Commission Recruitment Exam - General Knowledge>Chapter 8 - Chemistry>Exam Pattern Questions>Q 91
What is most common treatment for bacterial infections in humans?
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Haryana Staff Selection Commission Recruitment Exam - General Knowledge>Chapter 8 - Chemistry>Exam Pattern Questions>Q 92
Which of the following insecticides' harmful effects came under media attention; when issues in Kerala were publicized?
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Haryana Staff Selection Commission Recruitment Exam - General Knowledge>Chapter 8 - Chemistry>Exam Pattern Questions>Q 93
Which one of the following is a green house gas?
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Haryana Staff Selection Commission Recruitment Exam - General Knowledge>Chapter 8 - Chemistry>Exam Pattern Questions>Q 94
The major harmful gas emitted by automobile vehicles which causes air pollution is?