Question Answers

When lightning flash is produced, which gas may form (a) Nitrous oxide (b) Nitrogen dioxide (c) Dinitrogen pentoxide When lightning flash is produced which gas may form (a) Nitrous oxide (b) Nitrogen dioxide (c) Dinitrogen pentoxide November 18, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) ,

Incandescent bulbs are designed by keeping in mind that the resistance of their filament increases with the increase in temperature. If at room temperature, 100W,60Wand40W bulbs have filament resistances R 100, R 60 and R 40, respectively, the relation between these resistances is 100W 60Wand40W bulbs have filament resistances R 100 Incandescent bulbs are designed [...]

Which of the following is oxidised in air (a) White phosphorus (b) CH4 (c) H2O (d) NaCl Which of the following is oxidised in air (a) White phosphorus (b) CH4 (c) H2O (d) NaCl November 18, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) ,

Which show maximum valency (a) Phosphorus (b) Tin (c) Antimony (d) Bismuth Which show maximum valency (a) Phosphorus (b) Tin (c) Antimony (d) Bismuth November 18, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) ,

In a large building, there are 15 bulbs of 40 W, 5 bulbs of 100 W, 5 fans of 80 W and 1 heater of 1 kW. The voltage of electric mains is 220 V. The minimum capacity fo the main fuse of the building will be : 5 bulbs of 100 W 5 fans [...]

Oxidation number of As in H2AsO4- is (a) 6 (b) 7 (c) 5 (d) 9 Oxidation number of As in H2AsO4- is (a) 6 (b) 7 (c) 5 (d) 9 November 18, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) ,

Two electric bulbs marked 25 W- 220 V and 100 W – 220 V are connected in series to a 440 V supply. which of the bulbs will fuse ? Two electric bulbs marked 25 W- 220 V and 100 W - 220 V are connected in series to a 440 V supply. which of [...]

Which of the following is nitrogenous fertilizers (a) Bone meal (b) Thomas meal (c) Nitro phosphate (d) Ammonium sulphate Which of the following is nitrogenous fertilizers (a) Bone meal (b) Thomas meal (c) Nitro phosphate (d) Ammonium sulphate November 18, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) ,

When HNO3 is dropped into the palm and washed with water, it turns into yellow. It shows the presence of (a) NO2 (b) N2O (c) NO (d) N2O5 it turns into yellow. It shows the presence of (a) NO2 (b) N2O (c) NO (d) N2O5 When HNO3 is dropped into the palm and washed with [...]

A 20V battery with an internal resistance of 5Ω is connected to a resistor of x ohms. If an additional 6Ω resistor is connected across the battery, find the value of x so that the external power supplied by the battery remains same. A 20V battery with an internal resistance of 5Ω is connected to [...]