Q. River water is harder than rain water because it
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Q. Thermal electricity is generated by using which of these ?
Q. The chief constituent of gobar gas is
Q. Power-W/T, what is the meaning of W?
Q. The substance that contains the maximum amount of nitrogen is
Q. Who developed the model of atomic structure ?
Q. A balanced fertiliser for plants is
Q. The common name of sodium bicarbonate is
Q. Which of the following is commonly called a "polyamide"?
Q. A medicinally useful compound obtained from the oil of peppermints is
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