Category: Interesting

Does EDTA react with calcium? The method uses a very large molecule called EDTA which forms a complex with calcium ions. EDTA stands for ethylenediaminetetraacetic acid. As a result, when the calcium ion–PR complex is titrated with EDTA the Ca2+ ions react to form a stronger complex with the EDTA. Does calcium disodium EDTA remove…

How should I prepare for PGDBA? How to prepare for PGDBA 2020 Firstly PGDBA is very different from other MBA entrance exams and needs a new holistic approach towards applied mathematics and few concepts of physics too. Start from boosting your basics by solving Maths NCERTs of 11th and 12th Class and also analyse how…

Can an analog signal be changed into a digital signal? ADCs follow a sequence when converting analog signals to digital. They first sample the signal, then quantify it to determine the resolution of the signal, and finally set binary values and send it to the system to read the digital signal. Two important aspects of…

Does Canada support human rights? Canadians care about human rights. Canada recognizes the key role played by human rights defenders in protecting and promoting human rights and strengthening the rule of law, often at great risk to themselves, their families and communities, and to the organizations and movements they often represent. Which country is best…

What are the effects of demonetisation in India? Demonetisation lowered the growth rate of economic activity by at least 2 percentage points in the quarter of demonetization, said a working paper entitled ‘Cash and the Economy: Evidence from India’s Demonetisation. What are the main impacts of demonetisation? Owing to a substantial withdrawal of currency in…

How do you remember the gender of a French noun? In French, you have a masculine “the” (le) and a feminine “the” (la). Good news – there’s a plural “the” (les), but it stays the same for groups/things of either gender. Similarly, you have a masculine “a” (un) and a feminine “a” (une). What do…

How are US stock options taxed in Canada? Background. Under the employee stock option rules in the Income Tax Act, employees who exercise stock options must pay tax on the difference between the value of the stock and the exercise price paid. This effectively reduces by half the tax payable by the employee, which is…

Why are the terms sunrise and sunset inaccurate? The Earth’s orbit around the Sun is elliptical, rather than circular, and the Earth’s axis of rotation is not perpendicular to the plane of the orbit. This non-circularity of the orbit and the tilt of the Earth’s axis of rotation both contribute to the uneven changes in…

Why do so many composers die after their 9th symphony? The curse of the ninth is a superstition connected with the history of classical music. It is the belief that a ninth symphony is destined to be a composer’s last; that the composer will be fated to die while or after writing it, or before…

Can you quench in liquid nitrogen? Cryogenic hardening is a cryogenic treatment process where the material is cooled to approximately −185 °C (−301 °F), usually using liquid nitrogen. More commonly, an incomplete transformation occurs in the initial quench, so that cryogenic treatments merely enhance the effects of prior quenching. What happens when liquid nitrogen is…