General Knowledge Questions

coulomb is unit of Electric Charge,

watt per meter per degree celcius is unit of Thermal Conductivity,

joule per kilogram per Kelvin is unit of Specific Heat capacity.

American financial magazine Barron's has listed the name of HDFC Bank Managing Director Aditya Puri’s name in its list of world’s 30 best CEOs. He holds the 23rd position in the list beating social media giant Facebook’s CEO Mark Zuckerberg who is listed on the 30th spot.

The process of conversion of sugar to alcohol is called Fermentation in which sugar is coverted to alcohol with the help of yeast.

1. In the latest Global 500 rankings of most valuable and powerful brands across the globe, Sundar Pichai’s Google has surpassed Apple to achieve the top position.
2. The Brand Finance Global 500 list published on February 2, 2017 had featured Apple as the top brand for continuous five years.
3. However, for 2017, the ranking revealed that Google’s brand value rose by 24 percent to $109.5bn in 2016. The brand value of Apple on the other hand dropped 27 percent to $107bn.
4. This is for the first time since 2011 that Google has been placed at the top spot. The third place has been occupied by Amazon.
5. The ranking is based upon factors such as marketing investment, familiarity, loyalty, staff satisfaction and corporate reputation.

In rusting the Iron ore make a chemical reaction with the oxygen in the presence of water and environmental or atmospheric moisture to produce an Iron oxide. Iron oxide is otherwise called as rust.

The rusting of iron is a chemical change because it is two substances reacting together to make a new substance.

Secondary pollutants include ozone, which is formed when hydrocarbons (HC) and nitrogen oxides (NOx) combine in the presence of sunlight.

Whereas Primary pollutant are those pollutants that are directly emitted from their sources, like CO2, CO, SO2 as these gases are directly emitted form burning of fossil fuels.

Acid rain, which is formed when sulfur dioxide or nitrogen oxides react with water, sulfuric acid etc.

Hence, Acidrain is a secondary air pollutant.