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Q. F block elements in the periodic table which are commonly called Lanthanides have the following atomic numbers:

Q. Which among the following is the correct impact of the London Forces in the Cycloalkanes?

Q. The power we use at Home has a frequency of 60Hz. What would be the period of the sine wave?

Q. Which of the following places are main centers of silicosis and silico-tuberculosis diseases affecting the workers in India?

Q. What is the number of synthetic elements in periodic Table?

Q. Cobalt oxide is used to impart which color to glass?

Q. ―Oil of mirbane‖ is the most common name of which among the following?

Q. Genetic Modification (GM) technique RIDL was in news. RIDL is being developed for combating which of the following disease?

Q. Which of the following is / are correct statements with respect to Copper (Cu), Silver (Ag) and Gold (Au)? 1. All of them are can be found naturally in their elemental state 2. All of them belong to same group in the periodic table Select the correct option from the codes given below:

Q. Which among the following compound is most commonly used in the Photochromic lenses?