RRB EXAMS 2026 | Class 10 Science | Acids, Bases & Salts | அமிலங்கள், காரங்கள் & உப்புகள் | NCERT

Added: 2026-05-26

[00:00:18]RB group technician exam NC top 25 questions.

[00:00:41]with explanation.

[00:01:00]First question.

[00:01:04]So first question.

[00:01:23]Why?

[00:01:45]Okay.

[00:01:55]Hydronium.

[00:02:13]Hydrononeium.

[00:02:20]Option D.

[00:02:23]Option D.

[00:02:35]H3.

[00:02:44]Option Bodine.

[00:02:58]Broine.

[00:03:00]Broine.

[00:03:12]nonmetal. Point number one simple broine anemia. for liquid state. Liquid state.

[00:04:04]Liquid state.

[00:04:22]Hemoglobin.

[00:04:37]Super superst.

[00:05:05]Proton donor. Proton.

[00:05:09]Proton acceptor. Proton accept.

[00:05:25]the following.

[00:05:38]So second question number sodium hydroxide.

[00:05:55]Sodium hydroxide.

[00:06:03]Option A.

[00:06:06]Option B.

[00:06:08]Option C.

[00:06:12]Option D.

[00:06:19]Petroleum H2SO4.

[00:06:32]for English.

[00:06:49]Okay.

[00:07:02]H2Ot sodium hydroxide minus hydroxide.

[00:07:29]forg.

[00:07:53]King of chemicals.

[00:07:59]Okay.

[00:08:02]Option Bodium hydroxide.

[00:08:25]Okay.

[00:08:28]Hydrochloric hydrochloric soda. Na2 CO3. Na23 carbon dioxide gas. Point number one carbon dioxide. Option C.

[00:09:28]reaction.

[00:09:36]Exothermic reaction.

[00:09:48]CO2 sound H2 Gas reaction to gas option.

[00:10:35]Okay, next question.

[00:10:48]metal react H2 gas number A silver hydrogen gas Hydrogen gas. Hydrogen less reactive reactivity reactivity series. Hydrogen reactivity less react point number Hal gas ratio. foreign.

[00:12:49]Okay.

[00:13:10]3 is to1 ratio.

[00:13:24]Okay.

[00:13:27]Hydrochloric strong.

[00:13:33]Strong.

[00:13:54]Max strong.

[00:14:05]Okay.

[00:14:26]low concentration weak acus.

[00:14:52]Okay.

[00:14:56]Question, hydrochloric.

[00:15:24]chemical formulas C3 H3 default.

[00:15:43]Option Bak option B acetic acid.

[00:15:53]Okay.

[00:16:04]So basically Bidation reaction WhatsApp group Okay.

[00:17:18]Nitric hydrochloric acid but D option hydro sodium hydroxide strong.

[00:17:55]Okay.

[00:18:05]Present in stomach gastric juice.

[00:18:15]Ammonium, King of Rep2 soft drink.

[00:18:46]Carbonated soft drink water.

[00:19:12]Soda water.

[00:19:32]Okay.

[00:19:48]C3 H 63 numbers C3 C3 H63 Okay.

[00:20:21]Vitamin C.

[00:20:55]Okay.

[00:21:01]PDF.

[00:21:06]Number one propert maximum of the acids present in liquid.

[00:21:36]state liquid solid state.

[00:21:50]So mostly caroxilation reaction.

[00:22:26]option.

[00:22:29]Okay.

[00:22:32]Okay. Fine.

[00:22:43]False statement about the properties of alkaline.

[00:23:04]in the statement for note.

[00:23:29]Okay, fine.

[00:23:46]Okay. So, salt sodium chloride N Na sodium hydroxide sodium chloride.

[00:24:26]Okay.

[00:24:43]Okay.

[00:24:44]Hydrochloric hydrochloric strong acid.

[00:25:03]Sodium strong base.

[00:25:21]Okay.

[00:25:26]foreign exchange.

[00:25:51]Fine.

[00:25:54]Number one power of hydrogen. Power of hydrogen.

[00:26:25]power of hydrogen. Okay. P = log 10 + Okay. P value already.

[00:26:58]P value directly proportional to the O minus value.

[00:27:17]P value increase value.

[00:27:53]Okay.

[00:28:03]Base neutral neutral. Okay. Fore.

[00:28:52]Left value concentration increase.

[00:29:14]Repeat base concentration.

[00:29:33]Right.

[00:29:47]Left hydrogen, right? O minus question. Fore value.

[00:30:28]for Okay.

[00:30:44]Option B.

[00:30:49]Clear.

[00:31:01]Okay.

[00:31:12]for strong concentration.

[00:31:48]Option Okay. Option B.

[00:32:29]>> [clears throat] >> X Y E Z value.

[00:32:47]Okay.

[00:33:14]for science value.

[00:33:44]for it.

[00:34:06]concentration x option.

[00:34:32]Option B.

[00:34:55]H2S4.

[00:35:16]for H2S4.

[00:35:56]Okay.

[00:36:00]Metal sulfur nonmetal oxygen.

[00:36:23]Option B.

[00:36:30]Okay.

[00:36:42]PH salt Hydrogen nonmetal sulfur nonmetal oxygen nonmetal.

[00:37:41]concentration minus Husak Blue.

[00:38:13]Blueid.

[00:38:16]Blue coloration participation.

[00:38:51]Strong particip Option B.

[00:39:32]foreign.

[00:39:37]Okay.

[00:39:54]Vinegar, sun.

[00:40:09]Calcium hydroxide.

[00:40:14]Calcium hydroxide.

[00:40:21]Calcium oxide. Okay. C.

[00:40:26]Okay. Calcium hydroxide.

[00:40:30]C A H2.

[00:40:39]Option A.

[00:41:03]Which of the following is similarity between acid and bases? They are the preservative. They are used as preservations. Preservatives. They have pH less than seven.

[00:41:26]The process mixing acid or base with water is exothermic.

[00:41:32]They are bitter.

[00:41:58]options.

[00:42:06]Okay.

[00:42:10]Baking soda with sodium hydrogen carbonate. Sodium bicarbonate. Baking soda.

[00:42:18]CO3.

[00:42:19]Sodium hydroxide. Sodium.

[00:42:23]Sodium carbonate.

[00:42:26]Sodium hydrogen carbonate.

[00:42:45]Sodium hydroxide, potassium hydroxide, H2O, H2. H2O.

[00:43:17]Option B.

[00:43:25]Carbon dioxide.

[00:43:40]Dry ice which makes make us dry ice.

[00:44:19]carbon dioxide, CO2 gas, N sodium chloride.

[00:44:29]Examinch.

[00:44:58]color indicator.

[00:45:00]Okay.

[00:45:03]Smell. Okay. Factory indicator.

[00:45:12]Okay.

[00:45:23]Orange means option clear. Okay. Fine.

[00:45:54]Okay.

[00:46:11]No changes.

[00:46:20]indicator.

[00:46:29]No changes.

[00:46:40]No smell.

[00:47:02]Baking soda.

[00:47:05]Baking soda.

[00:47:08]Baking soda.

[00:47:10]N A H C3.

[00:47:16]Baking soda.

[00:47:18]Baking soda.

[00:47:30]option A simple questions.

[00:47:37]Okay, next question. Next question.

[00:47:41]Baking sodium bicarbonate. Sodium bicarbonate.

[00:47:50]Sodium.

[00:47:54]Sodium carbonate. Sodium bicarbonate.

[00:47:58]Sodium carbonate. Sodium carbonate.

[00:48:01]Salod.

[00:48:05]Salod.

[00:48:07]Washing powder.

[00:48:09]Washing.

[00:48:12]Baking soda.

[00:48:20]Okay.

[00:48:24]Carbon dioxide gas. Okay.

[00:48:37]Bacter toothpaste. Toothpaste.

[00:49:06]more than seven.

[00:49:11]Okay. Toothpaste.

[00:49:40]Option Ayd.

[00:49:52]Chloric.

[00:50:28]Option C.

[00:50:40]Option B. Option B.

[00:50:53]Option B.

[00:50:59]Option B.

[00:51:02]Clear. Okay.

[00:51:06]Easy match.

[00:51:12]Okay.

[00:51:36]Orange.

[00:51:53]Option C.

[00:52:13]Clear. Okay. Fine. Option C.

[00:52:21]for preservit number oxidation.

[00:53:07]Option nitrogen dioxide. Nitrogen gas.

[00:53:10]Nitrogen dioxide. Nitrogen dioxide.

[00:53:18]Nitrogen dioxide. Okay.

[00:53:21]Option A clearution.

[00:53:50]Option A.

[00:53:53]Option A. Okay.

[00:54:16]Okay.

[00:54:18]Platinum gast Come on. Come on.

[00:54:54]All metals to form of the hydrogen gas.

[00:55:00]Some metals gas statement.

[00:55:48]B.

[00:55:50]Option B.

[00:55:55]Okay. Fine.

[00:56:24]H2.

[00:56:32]Option A.

[00:56:35]Option A.

[00:56:44]option A. Okay.

[00:57:26]oxide.

[00:57:37]Hydro hydroxide.

[00:58:05]Hydroxide.

[00:58:23]for base.

[00:58:59]Hit copper oxide.

[00:59:19]Sodium hydroxide hydroxide potassium hydroxide WhatsApp WhatsApp group WhatsApp WhatsApp free to open.

[00:59:58]Okay.

[01:00:03]for golden members.

[01:00:17]Anyway, WhatsApp currentdf Number one English master maybe June daily.

[01:01:16]Okay. So, thank you so much.

[01:01:20]Thank you so much. Thank you.