- Potassium
- Cadmium
- Sodium
- Lithium
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Statement : The meteorological department has issued a notification forecasting less rainfall during next year's monsoon. Courses of Action : I. The government should immediately set up a water authority for proper management of water resources. II. The water supply authorities should be asked to implement reduction in regular water supply to tackle the situation. III. The farmers should be advised to cultivate alternate crops which require less water during the coming months.?
Answer: Option 1 Getting the information well in advance clearly suggests that adequate water be saved for the crisis by proper management and moderate cuts in water supply. Cultivating alternate...
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Direction : Two statements I and II are given. These statement may be either independent causes or may be effects of independent causes or a common cause. One of these statements may be the effect of the other statements. Read both the statements and decide which of the following answer choice correctly depicts the relationship between these two statements. Mark answer : I. There is increase in water level of all the water tanks supplying drinking water to the city during the last fortnight. II. Most of the trains were cancelled last week due to water-logging on the tracks.?
Answer: Option 5 The problems discussed in both the statements are clearly the result of heavy downpour in the area.
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Which of the following metals forms an amalgam with other metals?
Answer: Option 2 Almost all metals can form amalgams with mercury, the notable exceptions being iron, platinum, tungsten, and tantalum.
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The property of hydrogen which distinguishes it from alkali metals is?
Answer: Option 4 The property of hydrogen which distinguishes it from alkali metals is that hydrogen is a non - metal while all other members of group 1( alkali metals...
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Which of the following metals form an amalgam with other metals ?
Answer: Option 4 Mercury form an amalgam with other metals.
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An important geometrical quantity in the cutting of metals which can be used as a criterion for machinability of metals is?
Answer: Option 3 Let'
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A metalloid possesses the characteristics of both the metals and non-metals. Which of the following is not a metalloid?
Answer: Option 3 Let'
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The forms in which various metals and non metals occur in nature are called minerals. Which of the following is not a metallic ferrous mineral?
Answer: Option 4 Let'
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Coal mines drainage waste water (acidic in nature) results from the earth's water percolating through the voids created in coal bed during mining. This polluted water which either drains out naturally to water courses or are removed before starting the mining is?
Answer: Option 1 Let'
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There are thirteen metals which are treated as pollutants. Which of the following metals is not a pollutant?
Answer: Option 3 Let'
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