MCQ 11 MarkThe molecular formula for Magnesium bromide is ………………………… .A(а) MgBr✓ MgBr2C Mg2Br2D Mg2BrAnswerCorrect option: B. MgBr2 MgBr2View full question & answer→
MCQ 21 MarkSoap is ………………………… in nature.A radioactiveB naturalC acidic✓ basicAnswerCorrect option: D. basic basicView full question & answer→
MCQ 31 MarkMolecular formula of sodium bicarbonate is ………………………… .✓ NaHCO3B Na2HCO3C Na2HCO2D NaHCO2AnswerCorrect option: A. NaHCO3 NaHCO3View full question & answer→
MCQ 41 MarkStrong odour in swimming pool is due to ………………………… .✓ chlorine gasB impuritiesC calcium carbonateD calcium hydroxideAnswerCorrect option: A. chlorine gas chlorine gasView full question & answer→
MCQ 51 MarkRock salt is ………………………… in colour.A blackB white✓ brownD blueAnswerCorrect option: C. brown brownView full question & answer→
MCQ 61 MarkMelting point of NaCl is ………………………… .A 400°CB 100°C✓ 800°CD 600°CAnswerCorrect option: C. 800°C 800°CView full question & answer→
MCQ 71 MarkSoap is ………………………… in nature.A acidic✓ basicC neutralD fumingAnswerCorrect option: B. basic basicView full question & answer→
MCQ 81 MarkBleaching powder is ………………………… in colour.A brownish red✓ yellowish-whiteC pinkish brownD greenish blueAnswerCorrect option: B. yellowish-white yellowish-whiteView full question & answer→
MCQ 91 MarkChlorine gas is a strong ………………………… agent.A reducing✓ oxidisingC neutralD acidicAnswerCorrect option: B. oxidising oxidisingView full question & answer→
MCQ 101 MarkThe fixed number of molecules of water in alum is ………………………… .✓24B10C7D2AnswerCorrect option: A. 2424View full question & answer→
MCQ 111 MarkSubstance used to make hard water soft is ………………………… .✓ Na2CO3.10H2OB Na2CO3.H2OC NaCO3.10H2OD NaCO3.H2OAnswerCorrect option: A. Na2CO3.10H2O Na2CO3.10H2OView full question & answer→
MCQ 121 MarkThe molten state of NaCl is also called as ………………………… .A solid stateB semi-solidC gaseous state✓ fused stateAnswerCorrect option: D. fused state fused stateView full question & answer→
MCQ 131 MarkMolecular formula for Magnesium bromide is ………………………… .A MgBrB Mg2BrC Mg2Br2✓ MgBr2AnswerCorrect option: D. MgBr2 MgBr2View full question & answer→
MCQ 141 MarkNaHCO3 is also called as ………………………… .A Sodium carbonate✓ Sodium bicarbonateC Sodium carbon oxideD Sodium chlorideAnswerCorrect option: B. Sodium bicarbonate sodium bicarbonateView full question & answer→
MCQ 151 MarkBleaching powder is also called ………………………… .A Calcium oxygen chlorine✓ Calcium oxychlorideC Calcium hydroxideD Calcium oxalateAnswerCorrect option: B. Calcium oxychloride Calcium oxychlorideView full question & answer→
MCQ 161 MarkThe molecular formula for baking soda is ………………………… .A Na2CO3✓ NaHCO3C Na2SO4D NaNO3AnswerCorrect option: B. NaHCO3 NaHCO3View full question & answer→
MCQ 171 MarkThe ………………………… % aqueous solution of salt is called brine.✓25B60C30D50AnswerCorrect option: A. 2525View full question & answer→
MCQ 181 MarkSalt obtained from certain type of rock is called ………………………… .A hard salt✓ rock saltC stone saltD pure saltAnswerCorrect option: B. rock salt rock saltView full question & answer→
MCQ 191 Mark………………………… is known as chloride of lime.A Calcium carbonateB Sodium bicarbonateC Sodium chloride✓ Bleaching powderAnswerCorrect option: D. Bleaching powder Bleaching powderView full question & answer→
MCQ 201 MarkDuring electrolysis of NaCl in the fused state ………………………… is formed at cathode.✓ sodiumB oxygenC oxalic acidD butyric acidAnswerCorrect option: A. sodium sodiumView full question & answer→
MCQ 211 MarkBaking soda is ………………………… .A non-metallicB metallicC acidic✓ basicAnswerCorrect option: D. basic basicView full question & answer→