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When a metal and sulphuric acid react with each other, metal displaces hydrogen, which is higher in the reactivity series. Identify the metal for which the bubbling of hydrogen gas will be the fastest. जब कोई धातु और सल्फ्यूरिक अम्ल एक दूसरे के साथ अभिक्रिया करते हैं, तो धातु हाइड्रोजन को विस्थापित कर देती है, जो कि सक्रियता श्रेणी (reactivity series) में उच्चरत होती है। उस धातु की पहचान कीजिए जिसके लिए हाइड्रोजन गैस का बुद्बुन्द (bubbling) सबसे तीव्र होगा।

Comprehension: Read the given passage and answer the questions that follow. I was on a visit to Calcutta. It was Saturday and I was staying for the weekend at my cousin's. That evening my cousin, who works in a firm, had to fly to Delhi for a meeting. So, his wife drove him to the airport and I accompanied them. On our way back from the airport we stopped by a lake. My cousin's wife said, "Let me show you where we spend some of our evenings." She locked the car and we began to walk towards the lake. There was a small bridge to cross and she led the way. Three young men were coming from the other end of the bridge. As they approached us, one of them said to me, "Can I have a match?" As I put my hand into my pocket for the match box, I heard a cry of alarm. And then I saw what was happening. One of the other two men had snatched the handbag from my cousin's wife and passed it on the man next to him. He in turn passed it to the third man and all three started running back to where they had come from. My cousin's wife kept shouting and hurling abuses at them but made no attempt to follow them to retrieve her bag. I wanted to chase them but she stopped me saying that such rogues could be armed and dangerous. As it was dark, the three men were soon out of sight. I felt sorry for not being of any help but my cousin's wife assumed me that there was no money or valuables in the bag. She had just kept a couple of apples and a packet of biscuits in the handbag in case I felt hungry. After dropping the narrator's cousin, his cousin's wife took him to a lake to:

The channels get twisted symmetrically with regard to its axis ..........

निम्नलिखित में से कौन सा विकल्प नीचे दिए गए संबंध को सर्वोत्तम ढंग से पूर्ण करेगा ? BPC : CQD : : RIS : ?

Which of the following statement is NOT correct ? निम्नलिखित में से कौन सा कथन सही नहीं है? I. 1 is neither a prime nor a composite number I. 1 न ही अभाज्य है और न ही भाज्य संख्या II. 4 is the smallest composite number. II. 4 सबसे छोटी भाज्य संख्या है

Direction : Read the passage given below and answer the questions that follow (Q. No. 266 to 274), by selecting the correct/most appropriate options : 1. Kangri Karchok, the Kailash Purana of the Tibetans describes the sacred elephant-mouthed river or Langchen Khambab as a long and extensive river that rises from the 'lake unconquerable', the Tso Maphan or Manasarovar that flows from the mountainous regions of Tibet. According to this holy book, this cold river with its sands of gold, circles the holy Manasarovar seven times before taking its course to the west. 2. The Langchen Khambab flow down from the red coloured mountains of the Kanglung Kangri Glacier in the Trans–Himalayan region of Tibet, channelling its way through the earth forests of Tholing and Tsparang of the Gugi Kingdom. These earth forests are full of pillars formed by rocks that collectively appear like a forest from afar– an 'out of the world' landscape that was formed by geological movements of the earth and erosion by wind and water. The Khyunglung ruins also lies on the northern bank of the Sutlej river in this valley which was once known as the 'Garuda Valley". 3. This mighty river then flows north-west for about 260 km before entering Himachal Pradesh through Shipki La cutting across the fromidable Himalayan ranges of Zanskar, the Greater Himalaya and the Dhauladhar. Subsequently, the waters meander through the gigantic Kinnaur Kailash-Jorkanden Range at Reckong Peo creating the terryfying Sutlaj gorge. Then it streams into Shimla, Kullu, Mandi and Bilaspur and is responsible for the rich cultivation of grapes, apples and apricots all along its banks. After its confluence with the River Spiti at Khab it is known as Sutlej. 4. It is 1,448 km in length, making it the longest among the five rivers of Punjab. Extensively used for irrigation, it is topographically divided into the Upper Sutlej Basin and Lower Sutlej Basin. It leaves the Himachal boundary to enter the plains of the Punjab at the Bhakra Dam, the second highest gravity dam and a major point of water supply and electricity generation for the North of India. 'Lake unconquerable' refers to :

Choose the word that means the same as the given word. Abuse

हम विश्व दूरसंचार और सूचना सोसायटी दिवस (डब्ल्यूटीआईएसडी) कब मनाते हैं?

उपजाऊ का विलोम है –

What is the motion of a body of constant speed in a circular path?

Q: Select the option that correctly expresses the following sentence in active voice. This was talked about in the meeting by the officers.

A. The officers were talking about in the meeting.

B. The officers talked about this in the meeting.

C. The officers in the meeting had talked about it.

D. The officers talk about this in the meeting.

Correct Answer: Option B -

Explanations:

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