12th English Answer Key 2022 Set-A to J | English Objective Answer Key 2022 Bihar Board

10th science ch 12 electricity 2022

12th ka economics ka subjective question | 12th economics vvi question 2022

The questions given below consist of Assertion (A) and Reason (R ) . Use the following key to select the correct answer. Assertion : Ni("dmg")_2 is a square planar complex. Reason : Chelation effect is present in Ni("dmg")_2 .

The questions given below consist of Assertion (A) and Reason (R ) . Use the following key to select the correct answer. Assertion : In Zeise's salt, co-ordianation number of Pt is five. Reason : Ethene is a bidentate lignad .

Answer the following: (i) When an AC source is connected to an ideal inductor show that the average power supplied by the source every complete cycle is zero. (ii) A lamp is connected in series with an inductor and an AC source. What happens to the brightness of the lamp when the key is plugged in and an iron rod is inserted in the inducutor ? Explain.

The adjoining pie chart gives the marks scored in an examination by a student in Hindi, English, Mathematics, Social Science and Science. If the total marks obtained by the students were 540, answer the following questions.(i) In which subject did the student score 105 marks?(Hint: for 540 marks, the central angle = 360°. So, for 105 marks, what is the central angle?)(ii) How many more marks were obtained by the student in Mathematics than in Hindi?(iii) Examine whether the sum of the marks obtained in Social Science and Mathematics is more than that in Science and Hindi (Hint: Just study the central angles).