SSC CGL 2022101)How many sodium atoms are there in one molecule of sodium peroxide?
Two
SSC CGL 2022102)Which of the following is NOT a chemical coagulant used in water treatment?
Nitrogen dioxide
SSC CGL 2022103)Saccharomyces Cerevisiae is commonly used to make ______.
bread
SSC CGL 2022104)What is the atomic number of nitrogen?
7
SSC CGL 2022105)Which of the following is a characteristics of amorphous solids?
Gradual softening over a range of temperatures
SSC CGL 2022106)Which of the following techniques can be used for reducing the total dissolved solids (TDS) in water?
(1) Ion Exchange
(2) Distillation
(3) Carding
Both 1 and 2
SSC CGL 2022107)Irrespective of the source, pure water contains ______ of oxygen by mass.
88.89%
SSC CGL 2022108)Carbon monoxide contains approximately ______ of oxygen for each 1.00 g of carbon.
1.33 g
SSC CGL 2022109)Which of the following is a property of Beryllium?
Forms covalent compounds
SSC CGL 2022110)Acidic drain cleaners made of ________ or ________ acid are powerful enough to clear heavy-duty hair, food, grease, soap scum, or paper-based clogs in 15 minutes or less.
sulphuric, hydrochloric