Questions

Name the Russian chemist who stated that the properties of elements are a periodic function of their atomic masses?

Which factor affects the heart rate in mammals?

For the buying and selling of precious metals such as Goldand Silver, the market established is termed as ________ .

In the following question, some part of the sentence may have errors. Find out which part of the sentence has an error and select the appropriate option. If a sentence is free from error, select 'No Error'.

The first and decisive step (1)/ in the expansion of Europe overseas (2)/ was the conquest of Atlantic Ocean. (3)/ No error (4)

In the following question, a word has been written in four different ways out of which only one is correctly spelt. Select the correctly spelt word

Which of the following elements were not found in the form of archaeological remains from Kalibanga?

If A is 50% more than B, then B is what percent of A?

If X and Y are the two digits of the number 347XY such that the number is completely divisible by 80, then what is the value of X + Y?