Chemistry The mass number of a nucleus is the sum of the number of protons and neutrons present in the nucleus always more than the atomic weight a fraction always less than its atomic number the sum of the number of protons and neutrons present in the nucleus always more than the atomic weight a fraction always less than its atomic number ANSWER DOWNLOAD EXAMIANS APP
Chemistry Water cycle refers to An integrated attempt to recycle water in relatively arid regions Water distribution in relatively dry areas Constant movement of water from ocean to land and back to ocean once again Scientific management of water in areas excessively plagued with water-logging An integrated attempt to recycle water in relatively arid regions Water distribution in relatively dry areas Constant movement of water from ocean to land and back to ocean once again Scientific management of water in areas excessively plagued with water-logging ANSWER DOWNLOAD EXAMIANS APP
Chemistry Atoms of same element having different mass numbers are called________ Isotopes Isotones Isomers Isobars Isotopes Isotones Isomers Isobars ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following metals form an amalgam with other metals ? Zinc Tin Lead Mercury Zinc Tin Lead Mercury ANSWER DOWNLOAD EXAMIANS APP
Chemistry Spontaneous change is one in there is: An increase in Internal energy Increase in free energy A lowering of entropy A lowering of free energy An increase in Internal energy Increase in free energy A lowering of entropy A lowering of free energy ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following metals has least melting point ? Gold Mercury Silver Copper Gold Mercury Silver Copper ANSWER DOWNLOAD EXAMIANS APP
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