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Question 1 X-rays are produced when a stream of electrons in an X-ray tube?
Question 2 Most commonly used bleaching agent is
Question 3 The number of d-electrons in Fe2+ (Z = 26) is not equal to that of
Question 4 Stains of rust from iron on cloth can be removed by
Question 5 Peroxyacetyl nitrate is a
Question 6 The nucleus of a hydrogen atom consists of
Question 7  In fireworks, the green flame is produced because of:
Question 8 Hydrogen peroxide is an effective sterilising agent. Which one of the following product results when it readily loses active oxygen?
Question 9 The mass of P4O10 that will be obtained from the reaction of 1.33 gram of P4 and 5.07 of oxygen is
Question 10 Which group of elements in the periodic table show highest first ionization potential. Elements in the