Related Questions

Consider the following statements about Lead 1. Lead in bone is released into blood during pregnancy and becomes a source of exposure to the developing foetus 2. Informal and substandard recycling of lead-acid batteries is one of the cause of Lead Poisoning Which of the above statements is/are correct?
Consider the statements about Crowding Out Effect 1. It is a situation when increased interest rates lead to a reduction in private investment spending such that it dampens the initial increase of total investment spending. 2. Government increases the spending for economic growth then it may lead to crowding out of funding. 3. Fiscal deficit may lead to the crowding out effect. Which of the statements given above is/are correct?
A spherical lead ball of diameter 15 cm is melted and lead shots of radius 1.5 mm are made. The process involves wastage of 3%. How many lead balls are made?
Lead, ingested or inhaled, is a health hazard. After the addition of lead to petrol has been banned, what still are the sources of lead poisoning? 1. Smelling units 2. Pens and pencils 3. Paints 4. Hair oils and cosmetics Select the correct answer using the codes given below:   
Lead, ingested or inhaled, is a health hazard. After the addition of lead to petrol has been banned, what still are the sources of lead poisoning? 1. Paints 2. Pens and pencils 3. Smelting units 4. Hair oils and cosmetics Select the correct answer using the codes given below:
25 kg of alloy X is mixed with 125 kg of alloy Y. If the amount of lead and tin in the alloy X is in the ratio 1 : 2 and the amount of lead and tin in the alloy Y is in the ratio 2 : 3, then what is the ratio of lead and tin in the mixture?
25 kg of alloy X is mixed with 125 kg of alloy Y. If the amount of lead and tin in the alloy X is in the ratio 1 ∶ 2 and the amount of lead and tin in the alloy Y is in the ratio 2 ∶ 3, then what is the ratio of lead and tin in the mixture? 
2 alloys of copper and lead having copper and lead in the ratio 3 : 1 and 5 : 3 respectively, are melted to form a  new alloy A. If the ratio of copper and lead in alloy A is 7 : 10, then find the ratio in which two alloys are mixed to obtain alloy A.
Which of the following are the active materials of a lead-acid cell? 1) Lead Peroxide (PbO2) for positive plate 2) Sponge Lead (Pb) for negative plate 3) Concentrated Sulphuric acid (H2SO4) as electrolyte 4) Dilute Sulphuric acid (H2SO4) as electrolyte
Consider the following materials: 1. Lead peroxide 2. Sponge lead 3. Dilute sulphuric acid Which of the above are active materials of a lead-acid battery?